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Tutorials/SimpleMagnetic/SimpleMagnetic.htm
r3604 r3611 23 23 <o:Author>Von Dreele</o:Author> 24 24 <o:LastAuthor>vondreele</o:LastAuthor> 25 <o:Revision>2 0</o:Revision>26 <o:TotalTime>62 24</o:TotalTime>25 <o:Revision>23</o:Revision> 26 <o:TotalTime>6294</o:TotalTime> 27 27 <o:Created>2017-08-09T17:16:00Z</o:Created> 28 <o:LastSaved>2018-09-1 6T00:43:00Z</o:LastSaved>29 <o:Pages> 1</o:Pages>30 <o:Words>58 37</o:Words>31 <o:Characters>33 274</o:Characters>28 <o:LastSaved>2018-09-19T17:37:00Z</o:LastSaved> 29 <o:Pages>49</o:Pages> 30 <o:Words>5893</o:Words> 31 <o:Characters>33592</o:Characters> 32 32 <o:Company>Argonne National Laboratory</o:Company> 33 <o:Lines>27 7</o:Lines>33 <o:Lines>279</o:Lines> 34 34 <o:Paragraphs>78</o:Paragraphs> 35 <o:CharactersWithSpaces>39 033</o:CharactersWithSpaces>35 <o:CharactersWithSpaces>39407</o:CharactersWithSpaces> 36 36 <o:Version>16.00</o:Version> 37 37 </o:DocumentProperties> … … 44 44 <!--[if gte mso 9]><xml> 45 45 <w:WordDocument> 46 <w:Zoom>156</w:Zoom> 46 <w:View>Print</w:View> 47 <w:Zoom>140</w:Zoom> 47 48 <w:SpellingState>Clean</w:SpellingState> 48 49 <w:GrammarState>Clean</w:GrammarState> … … 664 665 {font-family:"Cambria Math"; 665 666 panose-1:2 4 5 3 5 4 6 3 2 4; 666 mso-font-charset: 1;667 mso-font-charset:0; 667 668 mso-generic-font-family:roman; 668 669 mso-font-pitch:variable; 669 mso-font-signature: 0 0 0 0 00;}670 mso-font-signature:-536869121 1107305727 33554432 0 415 0;} 670 671 @font-face 671 672 {font-family:"Calibri Light"; … … 1683 1684 <h1>Simple Magnetic Structures in GSAS-II </h1> 1684 1685 1685 <P><B>A video version of this tutorial is available at 1686 <A href="https://anl.box.com/v/SimpleMagnetic" target="_blank"> 1687 https://anl.box.com/v/SimpleMagnetic</A></B></P> 1686 <p><b>A video version of this tutorial is available at <a 1687 href="https://anl.box.com/v/SimpleMagnetic" target="_blank">https://anl.box.com/v/SimpleMagnetic</a></b></p> 1688 1688 1689 1689 <h2>Introduction</h2> … … 1717 1717 style='width:261pt;height:37.5pt;visibility:visible;mso-wrap-style:square'> 1718 1718 <v:imagedata src="SimpleMagnetic_files/image001.png" o:title=""/> 1719 </v:shape><![endif]--><![if !vml]><img width=348 height=501719 </v:shape><![endif]--><![if !vml]><img border=0 width=348 height=50 1720 1720 src="SimpleMagnetic_files/image001.png" v:shapes="Picture_x0020_1"><![endif]></span></p> 1721 1721 1722 <<<<<<< .mine1723 1722 <p class=MsoNormal>To have this result, one assumes that the neutron beam is 1724 1723 not polarized, the sample has no texture and there is only elastic scattering. … … 1728 1727 intensities are summed to give the total that is measured in a magnetic powder 1729 1728 diffraction experiment. This allows us to model the structure as two separate 1730 crystalline phases; one consists of the chemical arrangement of all the atoms 1731 in the crystal structure described with a conventional unit cell and space 1732 group, and the other contains only the magnetic atoms in a perhaps different 1733 unit cell with a magnetic space group to describe the atom and magnetic moment 1734 ||||||| .r3550 1735 <p class=MsoNormal>To have this result, one assumes that the neutron beam is not 1736 polarized, the sample has no texture and there is only elastic scattering. The 1737 first term is the ordinary nuclear structure factor found for all crystalline 1738 materials and the second is the magnetic scattering. Note that the result is a 1739 sum of squares implying that the nuclear and magnetic scattering intensities 1740 are summed to give the total that is measured in a magnetic powder diffraction 1741 experiment. This allows us to model the structure as two separate crystalline 1742 phases; one consists of the chemical arrangement of all the atoms in the 1743 crystal structure described with a conventional unit cell and space group, and 1744 the other contains only the magnetic atoms in a perhaps different unit cell 1745 with a magnetic space group to describe the atom and magnetic moment 1746 ======= 1747 <p class=MsoNormal>To have this result, one assumes that the neutron beam is not 1748 polarized, the sample has no texture and there is only elastic scattering. The 1749 first term is the ordinary nuclear structure factor found for all crystalline 1750 materials and the second is the magnetic scattering. Note that the result is a 1751 sum of squares implying that the nuclear and magnetic scattering intensities 1752 are summed to give the total that is measured in a magnetic powder diffraction 1753 experiment. This allows us to model the structure as two separate crystalline 1754 phases; one consists of the arrangement of all the atoms in the 1755 crystal structure described with a conventional unit cell and space 1756 group (the chemical or sometimes "nuclear" structure), and 1757 the other contains only the magnetic atoms in a perhaps different unit cell 1758 with a magnetic space group to describe the atom and magnetic moment 1759 >>>>>>> .r3603 1760 arrangement (the magnetic structure). 1761 Needless to say the magnetic ions only have one set of positions, 1762 both phases must describe the same atomic 1763 arrangement; positions of the magnetic ions will be linked, as needed, by 1764 constraints between the phases in order to maintain this arrangement.</p> 1729 crystalline phases; one consists of the arrangement of all the atoms in the 1730 crystal structure described with a conventional unit cell and space group (the 1731 chemical or sometimes "nuclear" structure), and the other contains 1732 only the magnetic atoms in a perhaps different unit cell with a magnetic space 1733 group to describe the atom and magnetic moment arrangement (the magnetic 1734 structure). Needless to say the magnetic ions only have one set of positions, 1735 both phases must describe the same atomic arrangement; positions of the 1736 magnetic ions will be linked, as needed, by constraints between the phases in 1737 order to maintain this arrangement.</p> 1738 1739 <p class=MsoNormal><o:p> </o:p></p> 1765 1740 1766 1741 <p class=MsoNormal>The magnetic scattering component has two factors</p> … … 1772 1747 height:48pt;visibility:visible;mso-wrap-style:square'> 1773 1748 <v:imagedata src="SimpleMagnetic_files/image002.png" o:title=""/> 1774 </v:shape><![endif]--><![if !vml]><img width=138 height=641749 </v:shape><![endif]--><![if !vml]><img border=0 width=138 height=64 1775 1750 src="SimpleMagnetic_files/image002.png" v:shapes="Picture_x0020_2"><![endif]></span></p> 1776 1751 … … 1850 1825 minor-latin;mso-hansi-theme-font:minor-latin'>/data/...</span></b><span 1851 1826 style='mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin'> 1852 entry will bring you to the location where the files have been downloaded. (It 1853 isalso possible to download them manually from <a1827 entry will bring you to the location where the files have been downloaded. (It is 1828 also possible to download them manually from <a 1854 1829 href="https://subversion.xray.aps.anl.gov/pyGSAS/Tutorials/SimpleMagnetic/data/">https://subversion.xray.aps.anl.gov/pyGSAS/Tutorials/SimpleMagnetic/data/</a>. 1855 1830 In this case you will need to navigate to the download location manually.)<br> … … 1903 1878 <v:imagedata src="SimpleMagnetic_files/image005.png" o:title=""/> 1904 1879 </v:shape><![endif]--><![if !vml]><img border=0 width=426 height=289 1905 src="SimpleMagnetic_files/image0 78.png" v:shapes="Picture_x0020_3"><![endif]></span></h2>1880 src="SimpleMagnetic_files/image003.png" v:shapes="Picture_x0020_3"><![endif]></span></h2> 1906 1881 1907 1882 <p class=MsoNormal><span class=GramE>and</span> the plot window will show the … … 1913 1888 <v:imagedata src="SimpleMagnetic_files/image007.png" o:title=""/> 1914 1889 </v:shape><![endif]--><![if !vml]><img border=0 width=624 height=535 1915 src="SimpleMagnetic_files/image0 80.png" v:shapes="Picture_x0020_4"><![endif]></span></p>1890 src="SimpleMagnetic_files/image004.png" v:shapes="Picture_x0020_4"><![endif]></span></p> 1916 1891 1917 1892 <h3>Step 2: Select Limits </h3> … … 1923 1898 be careful in selecting the lower limit especially for magnetic structure 1924 1899 studies as a small peak may be hidden at low angles that can decisively 1925 determine a magnetic structure (there are none in this example, but 1926 this issuewill be apparent in the next example). Click on the <b style='mso-bidi-font-weight:1900 determine a magnetic structure (there are none in this example, but this issue 1901 will be apparent in the next example). Click on the <b style='mso-bidi-font-weight: 1927 1902 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 1928 1903 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Limits</span></b> … … 1954 1929 <v:imagedata src="SimpleMagnetic_files/image009.png" o:title=""/> 1955 1930 </v:shape><![endif]--><![if !vml]><img border=0 width=624 height=535 1956 src="SimpleMagnetic_files/image0 81.png" v:shapes="Picture_x0020_5"><![endif]></span></p>1931 src="SimpleMagnetic_files/image006.png" v:shapes="Picture_x0020_5"><![endif]></span></p> 1957 1932 1958 1933 <h3>Step 3: Read in the chemical structure for LaMnO<sub>3</sub></h3> … … 1965 1940 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1966 1941 minor-latin'>Import/Phase/from CIF file</span></b> menu item to read the phase 1967 information for LaMnO<sub>3</sub> into the current GSAS-II project. This read 1968 option is set to read Crystallographic Information Files (CIF). Other submenu 1969 items will read phase information in other formats.<span 1970 style='mso-spacerun:yes'> </span>Because you used <span style='mso-fareast-font-family: 1971 Calibri;mso-fareast-theme-font:minor-latin'>the </span><b style='mso-bidi-font-weight:1942 information for LaMnO<sub>3</sub> into the current GSAS-II project. This read option 1943 is set to read Crystallographic Information Files (CIF). Other submenu items 1944 will read phase information in other formats.<span style='mso-spacerun:yes'> 1945 </span>Because you used <span style='mso-fareast-font-family:Calibri; 1946 mso-fareast-theme-font:minor-latin'>the </span><b style='mso-bidi-font-weight: 1972 1947 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 1973 1948 minor-latin;mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin; … … 2041 2016 <v:imagedata src="SimpleMagnetic_files/image012.png" o:title=""/> 2042 2017 </v:shape><![endif]--><![if !vml]><img border=0 width=539 height=278 2043 src="SimpleMagnetic_files/image0 82.png" v:shapes="Picture_x0020_7"><![endif]></span></p>2018 src="SimpleMagnetic_files/image008.png" v:shapes="Picture_x0020_7"><![endif]></span></p> 2044 2019 2045 2020 <h3>Step 4. Check powder pattern indexing</h3> … … 2062 2037 <v:imagedata src="SimpleMagnetic_files/image014.png" o:title=""/> 2063 2038 </v:shape><![endif]--><![if !vml]><img border=0 width=543 height=195 2064 src="SimpleMagnetic_files/image0 83.png" v:shapes="Picture_x0020_8"><![endif]></span></p>2039 src="SimpleMagnetic_files/image010.png" v:shapes="Picture_x0020_8"><![endif]></span></p> 2065 2040 2066 2041 <p class=MsoListParagraphCxSpMiddle style='margin-left:.25in;mso-add-space: 2067 auto'>This can be use lattice parameters & space groups to generate 2068 expected reflection positions to check against the peaks in the powder pattern. 2069 </p> 2042 auto'>This can be use lattice parameters & space groups to generate expected 2043 reflection positions to check against the peaks in the powder pattern. </p> 2070 2044 2071 2045 <p class=MsoListParagraphCxSpMiddle style='margin-left:.25in;mso-add-space: … … 2096 2070 <v:imagedata src="SimpleMagnetic_files/image016.png" o:title=""/> 2097 2071 </v:shape><![endif]--><![if !vml]><img border=0 width=548 height=197 2098 src="SimpleMagnetic_files/image0 84.png" v:shapes="Picture_x0020_9"><![endif]></span><br>2072 src="SimpleMagnetic_files/image013.png" v:shapes="Picture_x0020_9"><![endif]></span><br> 2099 2073 showing the lattice constants for LaMnO3 you had obtained from the <span 2100 2074 class=SpellE>cif</span> file. Note that the space group is set to that of the <span … … 2116 2090 <v:imagedata src="SimpleMagnetic_files/image018.png" o:title=""/> 2117 2091 </v:shape><![endif]--><![if !vml]><img border=0 width=552 height=473 2118 src="SimpleMagnetic_files/image0 85.png" v:shapes="Picture_x0020_10"><![endif]></span></p>2092 src="SimpleMagnetic_files/image015.png" v:shapes="Picture_x0020_10"><![endif]></span></p> 2119 2093 2120 2094 <p class=MsoListParagraphCxSpMiddle style='margin-left:.25in;mso-add-space: 2121 auto'>This is the reflection set for the <span class=SpellE>Bravais</span> 2122 <<<<<<< .mine 2123 lattice <span class=SpellE>Pmmm</span> which includes reflections that may be 2124 space group extinct and/or magnetically extinct. NB: a reflection that is space 2125 group extinct could still be allowed for magnetic scattering.</p> 2126 ||||||| .r3550 2127 lattice <span class=SpellE>Pmmm</span> which includes <span class=SpellE>relections</span> 2128 that may be space group extinct and/or magnetically extinct. BN: a reflection 2129 that is space group extinct could still be allowed for magnetic scattering.</p> 2130 ======= 2095 auto'>This is the reflection set for the <span class=SpellE>Bravais</span><span 2096 style='mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin'> 2131 2097 lattice <span class=SpellE>Pmmm</span> which includes <span class=SpellE>relections</span> 2132 2098 that may be space group extinct and/or magnetically extinct. N.B., a reflection 2133 that is extinct due to the chemical structure space group could still be allowed for magnetic scattering.</p>2134 >>>>>>> .r3603 2099 that is extinct due to the chemical structure space group could still be 2100 allowed for magnetic scattering.<o:p></o:p></span></p> 2135 2101 2136 2102 <p class=MsoListParagraphCxSpMiddle style='margin-left:.25in;mso-add-space: … … 2144 2110 <v:imagedata src="SimpleMagnetic_files/image020.png" o:title=""/> 2145 2111 </v:shape><![endif]--><![if !vml]><img border=0 width=548 height=470 2146 src="SimpleMagnetic_files/image0 86.png" v:shapes="Picture_x0020_11"><![endif]></span></p>2112 src="SimpleMagnetic_files/image017.png" v:shapes="Picture_x0020_11"><![endif]></span></p> 2147 2113 2148 2114 <p class=MsoListParagraphCxSpMiddle style='margin-left:.25in;mso-add-space: … … 2164 2130 <v:imagedata src="SimpleMagnetic_files/image022.png" o:title=""/> 2165 2131 </v:shape><![endif]--><![if !vml]><img border=0 width=544 height=466 2166 src="SimpleMagnetic_files/image0 87.png" v:shapes="Picture_x0020_12"><![endif]></span><br>2132 src="SimpleMagnetic_files/image019.png" v:shapes="Picture_x0020_12"><![endif]></span><br> 2167 2133 Notice that the 1<sup>st</sup> peak (as well as the contaminant) is no longer 2168 2134 indexed; this is likely to be a magnetic only peak as expected from an … … 2197 2163 <v:imagedata src="SimpleMagnetic_files/image024.png" o:title=""/> 2198 2164 </v:shape><![endif]--><![if !vml]><img border=0 width=540 height=195 2199 src="SimpleMagnetic_files/image0 88.png" v:shapes="Picture_x0020_13"><![endif]></span></p>2165 src="SimpleMagnetic_files/image021.png" v:shapes="Picture_x0020_13"><![endif]></span></p> 2200 2166 2201 2167 <p class=MsoListParagraphCxSpMiddle style='margin-left:.25in;mso-add-space: … … 2241 2207 <v:imagedata src="SimpleMagnetic_files/image026.png" o:title=""/> 2242 2208 </v:shape><![endif]--><![if !vml]><img border=0 width=256 height=214 2243 src="SimpleMagnetic_files/image0 89.png" v:shapes="Picture_x0020_14"><![endif]></span></p>2209 src="SimpleMagnetic_files/image023.png" v:shapes="Picture_x0020_14"><![endif]></span></p> 2244 2210 2245 2211 <p class=MsoListParagraphCxSpMiddle style='margin-left:.25in;mso-add-space: … … 2253 2219 <v:imagedata src="SimpleMagnetic_files/image028.png" o:title=""/> 2254 2220 </v:shape><![endif]--><![if !vml]><img border=0 width=256 height=214 2255 src="SimpleMagnetic_files/image0 90.png" v:shapes="Picture_x0020_15"><![endif]></span></p>2221 src="SimpleMagnetic_files/image025.png" v:shapes="Picture_x0020_15"><![endif]></span></p> 2256 2222 2257 2223 <p class=MsoListParagraphCxSpLast style='margin-left:.25in;mso-add-space:auto'>It … … 2268 2234 <h3>Step 5. Make the magnetic phase</h3> 2269 2235 2270 <p class=MsoNormal>In the previous step we did not have to resort to any doubling2271 of a cell axis to explain the suite of magnetic reflections, so the propagation 2272 vector is zero (in case anyone asks!). To make the magnetic cell from the 2273 chemical cell we will use the transform tool that is in GSAS-II in the General 2274 tab for the chemical structure. That tab is</p>2236 <p class=MsoNormal>In the previous step we did not have to resort to any 2237 doubling of a cell axis to explain the suite of magnetic reflections, so the 2238 propagation vector is zero (in case anyone asks!). To make the magnetic cell 2239 from the chemical cell we will use the transform tool that is in GSAS-II in the 2240 General tab for the chemical structure. That tab is</p> 2275 2241 2276 2242 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape … … 2279 2245 <v:imagedata src="SimpleMagnetic_files/image030.png" o:title=""/> 2280 2246 </v:shape><![endif]--><![if !vml]><img border=0 width=624 height=307 2281 src="SimpleMagnetic_files/image0 91.png" v:shapes="Picture_x0020_16"><![endif]></span></p>2247 src="SimpleMagnetic_files/image027.png" v:shapes="Picture_x0020_16"><![endif]></span></p> 2282 2248 2283 2249 <p class=MsoNormal>Under the <b style='mso-bidi-font-weight:normal'><span … … 2372 2338 <v:imagedata src="SimpleMagnetic_files/image035.png" o:title=""/> 2373 2339 </v:shape><![endif]--><![if !vml]><img border=0 width=624 height=360 2374 src="SimpleMagnetic_files/image0 95.png" v:shapes="_x0000_i1080"><![endif]></span></p>2340 src="SimpleMagnetic_files/image029.png" v:shapes="_x0000_i1080"><![endif]></span></p> 2375 2341 2376 2342 <p class=MsoNormal>The phase is named with mag appended to the end, the phase … … 2388 2354 <v:imagedata src="SimpleMagnetic_files/image037.png" o:title=""/> 2389 2355 </v:shape><![endif]--><![if !vml]><img border=0 width=517 height=353 2390 src="SimpleMagnetic_files/image0 97.png" v:shapes="_x0000_i1079"><![endif]></span></p>2356 src="SimpleMagnetic_files/image031.png" v:shapes="_x0000_i1079"><![endif]></span></p> 2391 2357 2392 2358 <p class=MsoNormal>This shows all the possible required constraints between the … … 2403 2369 2404 2370 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2405 id=" _x0000_i1078" type="#_x0000_t75" style='width:386.25pt;height:139.5pt;2406 visibility:visible;mso-wrap-style:square'>2371 id="Picture_x0020_22" o:spid="_x0000_i1078" type="#_x0000_t75" style='width:386.25pt; 2372 height:139.5pt;visibility:visible;mso-wrap-style:square'> 2407 2373 <v:imagedata src="SimpleMagnetic_files/image039.png" o:title=""/> 2408 2374 </v:shape><![endif]--><![if !vml]><img border=0 width=515 height=186 2409 src="SimpleMagnetic_files/image0 98.png" v:shapes="_x0000_i1078"><![endif]></span></p>2375 src="SimpleMagnetic_files/image032.png" v:shapes="Picture_x0020_22"><![endif]></span></p> 2410 2376 2411 2377 <p class=MsoNormal>This gives the constraints between the two phases for scale … … 2439 2405 <v:imagedata src="SimpleMagnetic_files/image041.png" o:title=""/> 2440 2406 </v:shape><![endif]--><![if !vml]><img border=0 width=624 height=149 2441 src="SimpleMagnetic_files/image0 99.png" v:shapes="Picture_x0020_23"><![endif]></span></p>2407 src="SimpleMagnetic_files/image033.png" v:shapes="Picture_x0020_23"><![endif]></span></p> 2442 2408 2443 2409 <p class=MsoNormal>The boxes that carry the magnetic moment components (<span … … 2474 2440 <v:imagedata src="SimpleMagnetic_files/image043.png" o:title=""/> 2475 2441 </v:shape><![endif]--><![if !vml]><img border=0 width=624 height=308 2476 src="SimpleMagnetic_files/image 100.png" v:shapes="Picture_x0020_24"><![endif]></span></p>2442 src="SimpleMagnetic_files/image036.png" v:shapes="Picture_x0020_24"><![endif]></span></p> 2477 2443 2478 2444 <p class=MsoNormal>It now shows the magnetic space group as <span class=SpellE>Pnma</span>. … … 2486 2452 <v:imagedata src="SimpleMagnetic_files/image045.png" o:title=""/> 2487 2453 </v:shape><![endif]--><![if !vml]><img border=0 width=624 height=162 2488 src="SimpleMagnetic_files/image 101.png" v:shapes="Picture_x0020_25"><![endif]></span></p>2454 src="SimpleMagnetic_files/image038.png" v:shapes="Picture_x0020_25"><![endif]></span></p> 2489 2455 2490 2456 <p class=MsoNormal><span class=GramE>with</span> 0.0 in each of the magnetic … … 2530 2496 <v:imagedata src="SimpleMagnetic_files/image047.png" o:title=""/> 2531 2497 </v:shape><![endif]--><![if !vml]><img border=0 width=421 height=307 2532 src="SimpleMagnetic_files/image 102.png" v:shapes="Picture_x0020_26"><![endif]></span></p>2498 src="SimpleMagnetic_files/image040.png" v:shapes="Picture_x0020_26"><![endif]></span></p> 2533 2499 2534 2500 <p class=MsoNormal>Under the <b style='mso-bidi-font-weight:normal'><span … … 2545 2511 <v:imagedata src="SimpleMagnetic_files/image049.png" o:title=""/> 2546 2512 </v:shape><![endif]--><![if !vml]><img border=0 width=444 height=225 2547 src="SimpleMagnetic_files/image 103.png" v:shapes="Picture_x0020_34"><![endif]></span></p>2513 src="SimpleMagnetic_files/image042.png" v:shapes="Picture_x0020_34"><![endif]></span></p> 2548 2514 2549 2515 <p class=MsoNormal>Scroll down to the bottom and select <b style='mso-bidi-font-weight: … … 2561 2527 <v:imagedata src="SimpleMagnetic_files/image051.png" o:title=""/> 2562 2528 </v:shape><![endif]--><![if !vml]><img border=0 width=416 height=303 2563 src="SimpleMagnetic_files/image 105.png" v:shapes="Picture_x0020_35"><![endif]></span></p>2529 src="SimpleMagnetic_files/image044.png" v:shapes="Picture_x0020_35"><![endif]></span></p> 2564 2530 2565 2531 <p class=MsoNormal>Now return to phases and select <b style='mso-bidi-font-weight: … … 2576 2542 <v:imagedata src="SimpleMagnetic_files/image053.png" o:title=""/> 2577 2543 </v:shape><![endif]--><![if !vml]><img border=0 width=489 height=101 2578 src="SimpleMagnetic_files/image 107.png" v:shapes="Picture_x0020_37"><![endif]></span></p>2544 src="SimpleMagnetic_files/image046.png" v:shapes="Picture_x0020_37"><![endif]></span></p> 2579 2545 2580 2546 <p class=MsoNormal>The least squares will not begin a refinement of <span … … 2597 2563 <v:imagedata src="SimpleMagnetic_files/image055.png" o:title=""/> 2598 2564 </v:shape><![endif]--><![if !vml]><img border=0 width=618 height=567 2599 src="SimpleMagnetic_files/image 108.png" v:shapes="Picture_x0020_30"><![endif]></span></p>2565 src="SimpleMagnetic_files/image048.png" v:shapes="Picture_x0020_30"><![endif]></span></p> 2600 2566 2601 2567 <p class=MsoNormal>There does not appear to be any calculated magnetic … … 2608 2574 <v:imagedata src="SimpleMagnetic_files/image057.png" o:title=""/> 2609 2575 </v:shape><![endif]--><![if !vml]><img border=0 width=618 height=567 2610 src="SimpleMagnetic_files/image 109.png" v:shapes="Picture_x0020_31"><![endif]></span></p>2576 src="SimpleMagnetic_files/image050.png" v:shapes="Picture_x0020_31"><![endif]></span></p> 2611 2577 2612 2578 <p class=MsoNormal>The magnetic moment is clearly too small; to let the least … … 2625 2591 <v:imagedata src="SimpleMagnetic_files/image059.png" o:title=""/> 2626 2592 </v:shape><![endif]--><![if !vml]><img border=0 width=618 height=568 2627 src="SimpleMagnetic_files/image 113.png" v:shapes="Picture_x0020_32"><![endif]></span></p>2593 src="SimpleMagnetic_files/image052.png" v:shapes="Picture_x0020_32"><![endif]></span></p> 2628 2594 2629 2595 <p class=MsoNormal>This appears to be a reasonable solution; a more complete … … 2654 2620 <v:imagedata src="SimpleMagnetic_files/image061.png" o:title=""/> 2655 2621 </v:shape><![endif]--><![if !vml]><img border=0 width=621 height=351 2656 src="SimpleMagnetic_files/image 115.png" v:shapes="Picture_x0020_33"><![endif]></span></p>2622 src="SimpleMagnetic_files/image054.png" v:shapes="Picture_x0020_33"><![endif]></span></p> 2657 2623 2658 2624 <p class=MsoNormal>Now set the spin operators to all <b style='mso-bidi-font-weight: … … 2669 2635 <v:imagedata src="SimpleMagnetic_files/image063.png" o:title=""/> 2670 2636 </v:shape><![endif]--><![if !vml]><img border=0 width=619 height=124 2671 src="SimpleMagnetic_files/image 116.png" v:shapes="Picture_x0020_18"><![endif]></span></p>2637 src="SimpleMagnetic_files/image056.png" v:shapes="Picture_x0020_18"><![endif]></span></p> 2672 2638 2673 2639 <p class=MsoNormal>Again, one can make the same argument that since the 010 … … 2699 2665 <v:imagedata src="SimpleMagnetic_files/image065.png" o:title=""/> 2700 2666 </v:shape><![endif]--><![if !vml]><img border=0 width=619 height=568 2701 src="SimpleMagnetic_files/image 117.png" v:shapes="Picture_x0020_19"><![endif]></span></p>2667 src="SimpleMagnetic_files/image058.png" v:shapes="Picture_x0020_19"><![endif]></span></p> 2702 2668 2703 2669 <p class=MsoNormal>There is intensity in the lowest angle reflection (the 010) … … 2715 2681 examine a slightly higher angle region (30-55°2Θ) and compare it with the 2716 2682 same region for the plot for the <span class=SpellE>Pnma</span> model (youll 2717 need 2 instances of GSAS-II running to do this)</p>2683 need 2 instances of GSAS-II running to do this)</p> 2718 2684 2719 2685 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape … … 2722 2688 <v:imagedata src="SimpleMagnetic_files/image104.png" o:title=""/> 2723 2689 </v:shape><![endif]--><![if !vml]><img border=0 width=612 height=251 2724 src="SimpleMagnetic_files/image 118.png" v:shapes="Picture_x0020_20"><![endif]></span></p>2725 2726 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2727 id="Picture_x0020_21" o:spid="_x0000_i1063" type="#_x0000_t75" style='width:45 7.5pt;2690 src="SimpleMagnetic_files/image060.png" v:shapes="Picture_x0020_20"><![endif]></span></p> 2691 2692 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2693 id="Picture_x0020_21" o:spid="_x0000_i1063" type="#_x0000_t75" style='width:456.75pt; 2728 2694 height:176.25pt;visibility:visible;mso-wrap-style:square'> 2729 2695 <v:imagedata src="SimpleMagnetic_files/image106.png" o:title=""/> 2730 </v:shape><![endif]--><![if !vml]><img border=0 width=6 10height=2352731 src="SimpleMagnetic_files/image 122.png" v:shapes="Picture_x0020_21"><![endif]></span></p>2696 </v:shape><![endif]--><![if !vml]><img border=0 width=609 height=235 2697 src="SimpleMagnetic_files/image062.png" v:shapes="Picture_x0020_21"><![endif]></span></p> 2732 2698 2733 2699 <p class=MsoNormal>You can see in particular at the pair of peaks at 33.3 and … … 2755 2721 <v:imagedata src="SimpleMagnetic_files/image110.png" o:title=""/> 2756 2722 </v:shape><![endif]--><![if !vml]><img border=0 width=606 height=528 2757 src="SimpleMagnetic_files/image 123.png" v:shapes="Picture_x0020_38"><![endif]></span></p>2723 src="SimpleMagnetic_files/image064.png" v:shapes="Picture_x0020_38"><![endif]></span></p> 2758 2724 2759 2725 <p class=MsoNormal>Looking at the plot, it would seem that the lattice … … 2778 2744 <v:imagedata src="SimpleMagnetic_files/image114.png" o:title=""/> 2779 2745 </v:shape><![endif]--><![if !vml]><img border=0 width=479 height=317 2780 src="SimpleMagnetic_files/image 124.png" v:shapes="Picture_x0020_39"><![endif]></span></p>2746 src="SimpleMagnetic_files/image066.png" v:shapes="Picture_x0020_39"><![endif]></span></p> 2781 2747 2782 2748 <p class=MsoNormal>Since the scan covers a very wide range in 2<span … … 2814 2780 <v:imagedata src="SimpleMagnetic_files/image072.png" o:title=""/> 2815 2781 </v:shape><![endif]--><![if !vml]><img border=0 width=620 height=539 2816 src="SimpleMagnetic_files/image 125.png" v:shapes="Picture_x0020_40"><![endif]></span></p>2782 src="SimpleMagnetic_files/image068.png" v:shapes="Picture_x0020_40"><![endif]></span></p> 2817 2783 2818 2784 <p class=MsoNormal>Now we can add refinement of the atom positions and thermal … … 2822 2788 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2823 2789 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 2824 minor-latin'>La <span class=SpellE>Mn</span> O3</span></b> </p> 2825 2826 <p class=MsoNormal>Phase, double click the refine column heading and select <b 2827 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2828 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 2829 minor-latin'>X</span></b> & <b style='mso-bidi-font-weight:normal'><span 2830 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2831 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>U.</span></b> 2832 This will add these parameters as allowed by symmetry to the refinement. Now go 2833 to the <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2834 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 2835 minor-latin'>Atoms</span></b> tab for <b style='mso-bidi-font-weight:normal'><span 2836 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2837 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>La <span 2838 class=SpellE>Mn</span> O3 mag</span></b> and double click the refine tab. 2839 Select <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2840 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 2841 minor-latin'>U</span></b> & <b style='mso-bidi-font-weight:normal'><span 2842 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2843 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>M</span></b>; 2844 the <span class=SpellE>Uiso</span> for the <span class=SpellE>Mn</span> atom is 2845 tied via a constraint to the <span class=SpellE>Mn</span> in the other phase. 2846 Now select <b style='mso-bidi-font-weight:normal'><span style='font-family: 2847 "Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: 2848 minor-latin;mso-bidi-theme-font:minor-latin'>Background</span></b> from the <b 2849 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2790 minor-latin'>La <span class=SpellE>Mn</span> O3</span></b> phase, double click 2791 the refine column heading and select <b style='mso-bidi-font-weight:normal'><span 2792 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2793 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>X</span></b> 2794 & <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2795 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 2796 minor-latin'>U.</span></b> This will add these parameters as allowed by 2797 symmetry to the refinement. Now go to the <b style='mso-bidi-font-weight:normal'><span 2798 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2799 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Atoms</span></b> 2800 tab for <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2801 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 2802 minor-latin'>La <span class=SpellE>Mn</span> O3 mag</span></b> and double click 2803 the refine tab. Select <b style='mso-bidi-font-weight:normal'><span 2804 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2805 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>U</span></b> 2806 & <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2807 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 2808 minor-latin'>M</span></b>; the <span class=SpellE>Uiso</span> for the <span 2809 class=SpellE>Mn</span> atom is tied via a constraint to the <span class=SpellE>Mn</span> 2810 in the other phase. Now select <b style='mso-bidi-font-weight:normal'><span 2811 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2812 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Background</span></b> 2813 from the <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2850 2814 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 2851 2815 minor-latin'>PWDR</span></b> entry and increase the number of terms to <b … … 2867 2831 <v:imagedata src="SimpleMagnetic_files/image121.png" o:title=""/> 2868 2832 </v:shape><![endif]--><![if !vml]><img border=0 width=615 height=527 2869 src="SimpleMagnetic_files/image 131.png" v:shapes="Picture_x0020_41"><![endif]></span></p>2870 2871 <p class=MsoNormal>This curve shows a couple of peaks which are from some 2872 contaminatingphase, but otherwise the fluctuations are mostly within 2<span2833 src="SimpleMagnetic_files/image070.png" v:shapes="Picture_x0020_41"><![endif]></span></p> 2834 2835 <p class=MsoNormal>This curve shows a couple of peaks which are from some contaminating 2836 phase, but otherwise the fluctuations are mostly within 2<span 2873 2837 style='font-family:Symbol'>s</span> of zero. Finally examine the magnetic 2874 2838 moment components of the <span class=SpellE>Mn</span> atom; <span class=SpellE><b … … 2901 2865 <v:imagedata src="SimpleMagnetic_files/image111.png" o:title=""/> 2902 2866 </v:shape><![endif]--><![if !vml]><img border=0 width=615 height=129 2903 src="SimpleMagnetic_files/image 132.png" v:shapes="Picture_x0020_42"><![endif]></span></p>2867 src="SimpleMagnetic_files/image073.png" v:shapes="Picture_x0020_42"><![endif]></span></p> 2904 2868 2905 2869 <p class=MsoNormal><o:p> </o:p></p> … … 2919 2883 <v:imagedata src="SimpleMagnetic_files/image119.png" o:title=""/> 2920 2884 </v:shape><![endif]--><![if !vml]><img border=0 width=616 height=247 2921 src="SimpleMagnetic_files/image 133.png" v:shapes="Picture_x0020_44"><![endif]></span></p>2885 src="SimpleMagnetic_files/image074.png" v:shapes="Picture_x0020_44"><![endif]></span></p> 2922 2886 2923 2887 <p class=MsoNormal>The plot will show the unit cell contents of <span … … 2932 2896 <v:imagedata src="SimpleMagnetic_files/image126.png" o:title=""/> 2933 2897 </v:shape><![endif]--><![if !vml]><img border=0 width=610 height=513 2934 src="SimpleMagnetic_files/image 135.png" v:shapes="Picture_x0020_45"><![endif]></span></p>2898 src="SimpleMagnetic_files/image075.png" v:shapes="Picture_x0020_45"><![endif]></span></p> 2935 2899 2936 2900 <p class=MsoNormal>This completes this tutorial; you can save the project if … … 3042 3006 <v:imagedata src="SimpleMagnetic_files/image067.png" o:title=""/> 3043 3007 </v:shape><![endif]--><![if !vml]><img border=0 width=261 height=276 3044 src="SimpleMagnetic_files/image 137.png" v:shapes="Picture_x0020_27"><![endif]></span></p>3008 src="SimpleMagnetic_files/image076.png" v:shapes="Picture_x0020_27"><![endif]></span></p> 3045 3009 3046 3010 <p class=MsoNormal style='margin-left:.25in'><span class=GramE>and</span> the … … 3052 3016 <v:imagedata src="SimpleMagnetic_files/image069.png" o:title=""/> 3053 3017 </v:shape><![endif]--><![if !vml]><img border=0 width=596 height=543 3054 src="SimpleMagnetic_files/image 139.png" v:shapes="Picture_x0020_28"><![endif]></span></p>3018 src="SimpleMagnetic_files/image077.png" v:shapes="Picture_x0020_28"><![endif]></span></p> 3055 3019 3056 3020 <h3>Step 2: Select Limits </h3> … … 3087 3051 <v:imagedata src="SimpleMagnetic_files/image071.png" o:title=""/> 3088 3052 </v:shape><![endif]--><![if !vml]><img border=0 width=624 height=568 3089 src="SimpleMagnetic_files/image 161.png" v:shapes="Picture_x0020_29"><![endif]></span></p>3053 src="SimpleMagnetic_files/image079.png" v:shapes="Picture_x0020_29"><![endif]></span></p> 3090 3054 3091 3055 <h3><a name="sucrose_peak_fit"></a>Step 3: Read in the chemical structure for … … 3156 3120 <v:imagedata src="SimpleMagnetic_files/image134.png" o:title=""/> 3157 3121 </v:shape><![endif]--><![if !vml]><img border=0 width=280 height=224 3158 src="SimpleMagnetic_files/image 162.png" v:shapes="Picture_x0020_46"><![endif]></span></p>3122 src="SimpleMagnetic_files/image094.png" v:shapes="Picture_x0020_46"><![endif]></span></p> 3159 3123 3160 3124 <p class=MsoNormal style='margin-left:.25in'>Select the histogram (or press <b … … 3170 3134 <v:imagedata src="SimpleMagnetic_files/image136.png" o:title=""/> 3171 3135 </v:shape><![endif]--><![if !vml]><img border=0 width=598 height=304 3172 src="SimpleMagnetic_files/image 163.png" v:shapes="Picture_x0020_47"><![endif]></span></p>3136 src="SimpleMagnetic_files/image096.png" v:shapes="Picture_x0020_47"><![endif]></span></p> 3173 3137 3174 3138 <p class=MsoNormal style='margin-left:.25in'>Notice that the space group from … … 3194 3158 <v:imagedata src="SimpleMagnetic_files/image138.png" o:title=""/> 3195 3159 </v:shape><![endif]--><![if !vml]><img border=0 width=622 height=221 3196 src="SimpleMagnetic_files/image1 64.png" v:shapes="Picture_x0020_48"><![endif]></span></p>3160 src="SimpleMagnetic_files/image112.png" v:shapes="Picture_x0020_48"><![endif]></span></p> 3197 3161 3198 3162 <p class=MsoListParagraphCxSpFirst style='margin-left:0in;mso-add-space:auto'>This … … 3219 3183 <v:imagedata src="SimpleMagnetic_files/image143.png" o:title=""/> 3220 3184 </v:shape><![endif]--><![if !vml]><img border=0 width=622 height=221 3221 src="SimpleMagnetic_files/image1 65.png" v:shapes="Picture_x0020_49"><![endif]></span><br3185 src="SimpleMagnetic_files/image120.png" v:shapes="Picture_x0020_49"><![endif]></span><br 3222 3186 style='mso-special-character:line-break'> 3223 3187 <![if !supportLineBreakNewLine]><br style='mso-special-character:line-break'> … … 3238 3202 to see details of the indexing<span style='mso-no-proof:yes'> <!--[if gte vml 1]><v:shape 3239 3203 id="Picture_x0020_50" o:spid="_x0000_i1048" type="#_x0000_t75" style='width:465.75pt; 3240 height:327 pt;visibility:visible;mso-wrap-style:square'>3204 height:327.75pt;visibility:visible;mso-wrap-style:square'> 3241 3205 <v:imagedata src="SimpleMagnetic_files/image145.png" o:title=""/> 3242 </v:shape><![endif]--><![if !vml]><img border=0 width=621 height=43 63243 src="SimpleMagnetic_files/image1 66.png" v:shapes="Picture_x0020_50"><![endif]></span></p>3206 </v:shape><![endif]--><![if !vml]><img border=0 width=621 height=437 3207 src="SimpleMagnetic_files/image127.png" v:shapes="Picture_x0020_50"><![endif]></span></p> 3244 3208 3245 3209 <p class=MsoListParagraphCxSpLast style='margin-left:0in;mso-add-space:auto'>Note … … 3253 3217 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 3254 3218 id="Picture_x0020_51" o:spid="_x0000_i1047" type="#_x0000_t75" style='width:468.75pt; 3255 height:3 29.25pt;visibility:visible;mso-wrap-style:square'>3219 height:330pt;visibility:visible;mso-wrap-style:square'> 3256 3220 <v:imagedata src="SimpleMagnetic_files/image147.png" o:title=""/> 3257 </v:shape><![endif]--><![if !vml]><img border=0 width=625 height=4 393258 src="SimpleMagnetic_files/image1 67.png" v:shapes="Picture_x0020_51"><![endif]></span><br>3221 </v:shape><![endif]--><![if !vml]><img border=0 width=625 height=440 3222 src="SimpleMagnetic_files/image128.png" v:shapes="Picture_x0020_51"><![endif]></span><br> 3259 3223 Then check the box <b style='mso-bidi-font-weight:normal'><span 3260 3224 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; … … 3269 3233 <v:imagedata src="SimpleMagnetic_files/image149.png" o:title=""/> 3270 3234 </v:shape><![endif]--><![if !vml]><img border=0 width=623 height=199 3271 src="SimpleMagnetic_files/image1 68.png" v:shapes="Picture_x0020_52"><![endif]></span></p>3235 src="SimpleMagnetic_files/image129.png" v:shapes="Picture_x0020_52"><![endif]></span></p> 3272 3236 3273 3237 <p class=MsoListParagraphCxSpLast style='margin-left:0in;mso-add-space:auto'>Because … … 3288 3252 3289 3253 <p class=MsoNormal>In the previous step we did not have to resort to any 3290 doubling of a cell axis to explain the suite of magnetic reflections, so the propagation3291 vector is zero (in case anyone asks!). To make the magnetic cell from the 3292 chemical cell we will use the transform tool that is in GSAS-II in the General 3293 tab for the chemical structure. That tab is</p>3254 doubling of a cell axis to explain the suite of magnetic reflections, so the 3255 propagation vector is zero (in case anyone asks!). To make the magnetic cell 3256 from the chemical cell we will use the transform tool that is in GSAS-II in the 3257 General tab for the chemical structure. That tab is</p> 3294 3258 3295 3259 <p class=MsoListParagraph style='margin-left:0in;mso-add-space:auto'><span … … 3299 3263 <v:imagedata src="SimpleMagnetic_files/image151.png" o:title=""/> 3300 3264 </v:shape><![endif]--><![if !vml]><img border=0 width=623 height=275 3301 src="SimpleMagnetic_files/image1 69.png" v:shapes="Picture_x0020_53"><![endif]></span></p>3265 src="SimpleMagnetic_files/image130.png" v:shapes="Picture_x0020_53"><![endif]></span></p> 3302 3266 3303 3267 <p class=MsoNormal>Under the <b style='mso-bidi-font-weight:normal'><span … … 3333 3297 src="SimpleMagnetic_files/image173.png" v:shapes="Picture_x0020_82"><![endif]></span></p> 3334 3298 3335 <p class=MsoNormal>This allows one to select possible magnetic lattice 3336 centering operations as given by the BNS nomenclature. This can be needed if 3337 one had discovered a requirement of doubling a cell axis in the previous step 3338 (e.g. a nonzero propagation vector). This is not required in this case and we 3339 are using the same nonstandard space group (<span class=SpellE>Pnma</span>) for 3340 the magnetic cell that is used for the chemical cell. Leave the box at the 3341 bottom about constraints checked as we want them to tie the two phases 3342 together.<span style='mso-spacerun:yes'> </span>Press <b style='mso-bidi-font-weight: 3343 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 3344 m inor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Ok</span></b>3299 <p class=MsoNormal>This allows one to select possible magnetic lattice centering 3300 operations as given by the BNS nomenclature. This can be needed if one had 3301 discovered a requirement of doubling a cell axis in the previous step (e.g. a 3302 nonzero propagation vector). This is not required in this case and we are using 3303 the same nonstandard space group (<span class=SpellE>Pnma</span>) for the 3304 magnetic cell that is used for the chemical cell. Leave the box at the bottom 3305 about constraints checked as we want them to tie the two phases together.<span 3306 style='mso-spacerun:yes'> </span>Press <b style='mso-bidi-font-weight:normal'><span 3307 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 3308 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Ok</span></b> 3345 3309 to continue; a new popup will appear</p> 3346 3310 … … 3351 3315 <v:imagedata src="SimpleMagnetic_files/image157.png" o:title=""/> 3352 3316 </v:shape><![endif]--><![if !vml]><img border=0 width=196 height=87 3353 src="SimpleMagnetic_files/image1 77.png" v:shapes="Picture_x0020_56"><![endif]></span></p>3317 src="SimpleMagnetic_files/image140.png" v:shapes="Picture_x0020_56"><![endif]></span></p> 3354 3318 3355 3319 <p class=MsoNormal>This allows one to reject certain atoms that are known to … … 3366 3330 <v:imagedata src="SimpleMagnetic_files/image159.png" o:title=""/> 3367 3331 </v:shape><![endif]--><![if !vml]><img border=0 width=619 height=365 3368 src="SimpleMagnetic_files/image1 81.png" v:shapes="Picture_x0020_57"><![endif]></span></p>3332 src="SimpleMagnetic_files/image141.png" v:shapes="Picture_x0020_57"><![endif]></span></p> 3369 3333 3370 3334 <p class=MsoNormal>The phase is named with mag appended to the end, the phase … … 3390 3354 <v:imagedata src="SimpleMagnetic_files/image170.png" o:title=""/> 3391 3355 </v:shape><![endif]--><![if !vml]><img border=0 width=625 height=143 3392 src="SimpleMagnetic_files/image1 83.png" v:shapes="Picture_x0020_58"><![endif]></span></p>3356 src="SimpleMagnetic_files/image142.png" v:shapes="Picture_x0020_58"><![endif]></span></p> 3393 3357 3394 3358 <p class=MsoListParagraphCxSpMiddle style='margin-left:0in;mso-add-space:auto'>Notice … … 3417 3381 <v:imagedata src="SimpleMagnetic_files/image172.png" o:title=""/> 3418 3382 </v:shape><![endif]--><![if !vml]><img border=0 width=320 height=266 3419 src="SimpleMagnetic_files/image1 85.png" v:shapes="Picture_x0020_60"><![endif]></span></p>3383 src="SimpleMagnetic_files/image144.png" v:shapes="Picture_x0020_60"><![endif]></span></p> 3420 3384 3421 3385 <p class=MsoListParagraphCxSpMiddle style='margin-left:0in;mso-add-space:auto'>The … … 3432 3396 <v:imagedata src="SimpleMagnetic_files/image174.png" o:title=""/> 3433 3397 </v:shape><![endif]--><![if !vml]><img border=0 width=634 height=133 3434 src="SimpleMagnetic_files/image1 87.png" v:shapes="Picture_x0020_61"><![endif]></span></p>3398 src="SimpleMagnetic_files/image146.png" v:shapes="Picture_x0020_61"><![endif]></span></p> 3435 3399 3436 3400 <p class=MsoListParagraphCxSpLast style='margin-left:0in;mso-add-space:auto'>If … … 3488 3452 <v:imagedata src="SimpleMagnetic_files/image176.png" o:title=""/> 3489 3453 </v:shape><![endif]--><![if !vml]><img border=0 width=692 height=486 3490 src="SimpleMagnetic_files/image1 89.png" v:shapes="Picture_x0020_64"><![endif]></span></p>3454 src="SimpleMagnetic_files/image148.png" v:shapes="Picture_x0020_64"><![endif]></span></p> 3491 3455 3492 3456 <p class=MsoListParagraphCxSpLast style='margin-left:0in;mso-add-space:auto'>Clearly … … 3559 3523 <v:imagedata src="SimpleMagnetic_files/image178.png" o:title=""/> 3560 3524 </v:shape><![endif]--><![if !vml]><img border=0 width=624 height=119 3561 src="SimpleMagnetic_files/image1 91.png" v:shapes="Picture_x0020_63"><![endif]></span></p>3525 src="SimpleMagnetic_files/image150.png" v:shapes="Picture_x0020_63"><![endif]></span></p> 3562 3526 3563 3527 <p class=MsoNormal>Then do <b style='mso-bidi-font-weight:normal'><span … … 3569 3533 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 3570 3534 id="Picture_x0020_65" o:spid="_x0000_i1035" type="#_x0000_t75" style='width:468.75pt; 3571 height:3 29.25pt;visibility:visible;mso-wrap-style:square'>3535 height:330pt;visibility:visible;mso-wrap-style:square'> 3572 3536 <v:imagedata src="SimpleMagnetic_files/image180.png" o:title=""/> 3573 </v:shape><![endif]--><![if !vml]><img border=0 width=625 height=4 393574 src="SimpleMagnetic_files/image1 93.png" v:shapes="Picture_x0020_65"><![endif]></span></p>3537 </v:shape><![endif]--><![if !vml]><img border=0 width=625 height=440 3538 src="SimpleMagnetic_files/image152.png" v:shapes="Picture_x0020_65"><![endif]></span></p> 3575 3539 3576 3540 <p class=MsoNormal><span class=GramE>and</span> the magnetic moment components … … 3578 3542 3579 3543 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 3580 id="Picture_x0020_66" o:spid="_x0000_i1034" type="#_x0000_t75" style='width:471 pt;3544 id="Picture_x0020_66" o:spid="_x0000_i1034" type="#_x0000_t75" style='width:471.75pt; 3581 3545 height:92.25pt;visibility:visible;mso-wrap-style:square'> 3582 3546 <v:imagedata src="SimpleMagnetic_files/image182.png" o:title=""/> 3583 </v:shape><![endif]--><![if !vml]><img border=0 width=62 8height=1233584 src="SimpleMagnetic_files/image 200.png" v:shapes="Picture_x0020_66"><![endif]></span></p>3547 </v:shape><![endif]--><![if !vml]><img border=0 width=629 height=123 3548 src="SimpleMagnetic_files/image153.png" v:shapes="Picture_x0020_66"><![endif]></span></p> 3585 3549 3586 3550 <p class=MsoNormal>So we test the next possibility.</p> … … 3631 3595 3632 3596 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 3633 id="Picture_x0020_67" o:spid="_x0000_i1033" type="#_x0000_t75" style='width:47 2.5pt;3597 id="Picture_x0020_67" o:spid="_x0000_i1033" type="#_x0000_t75" style='width:471.75pt; 3634 3598 height:331.5pt;visibility:visible;mso-wrap-style:square'> 3635 3599 <v:imagedata src="SimpleMagnetic_files/image184.png" o:title=""/> 3636 </v:shape><![endif]--><![if !vml]><img border=0 width=6 30height=4423637 src="SimpleMagnetic_files/image 201.png" v:shapes="Picture_x0020_67"><![endif]></span></p>3600 </v:shape><![endif]--><![if !vml]><img border=0 width=629 height=442 3601 src="SimpleMagnetic_files/image154.png" v:shapes="Picture_x0020_67"><![endif]></span></p> 3638 3602 3639 3603 <p class=MsoNormal>The <b style='mso-bidi-font-weight:normal'><span … … 3649 3613 <v:imagedata src="SimpleMagnetic_files/image186.png" o:title=""/> 3650 3614 </v:shape><![endif]--><![if !vml]><img border=0 width=630 height=118 3651 src="SimpleMagnetic_files/image 202.png" v:shapes="Picture_x0020_68"><![endif]></span></p>3615 src="SimpleMagnetic_files/image155.png" v:shapes="Picture_x0020_68"><![endif]></span></p> 3652 3616 3653 3617 <p class=MsoNormal>Lets test the next one.</p> … … 3700 3664 <v:imagedata src="SimpleMagnetic_files/image188.png" o:title=""/> 3701 3665 </v:shape><![endif]--><![if !vml]><img border=0 width=629 height=441 3702 src="SimpleMagnetic_files/image 203.png" v:shapes="Picture_x0020_69"><![endif]></span></p>3666 src="SimpleMagnetic_files/image156.png" v:shapes="Picture_x0020_69"><![endif]></span></p> 3703 3667 3704 3668 <p class=MsoNormal>The <b style='mso-bidi-font-weight:normal'><span … … 3713 3677 <v:imagedata src="SimpleMagnetic_files/image190.png" o:title=""/> 3714 3678 </v:shape><![endif]--><![if !vml]><img border=0 width=630 height=126 3715 src="SimpleMagnetic_files/image 204.png" v:shapes="Picture_x0020_70"><![endif]></span></p>3679 src="SimpleMagnetic_files/image158.png" v:shapes="Picture_x0020_70"><![endif]></span></p> 3716 3680 3717 3681 <p class=MsoNormal>We should now check the last spin configuration.</p> … … 3762 3726 <v:imagedata src="SimpleMagnetic_files/image192.png" o:title=""/> 3763 3727 </v:shape><![endif]--><![if !vml]><img border=0 width=633 height=444 3764 src="SimpleMagnetic_files/image 205.png" v:shapes="Picture_x0020_71"><![endif]></span></p>3728 src="SimpleMagnetic_files/image160.png" v:shapes="Picture_x0020_71"><![endif]></span></p> 3765 3729 3766 3730 <p class=MsoNormal><span class=GramE>and</span> with the strong <span … … 3773 3737 <v:imagedata src="SimpleMagnetic_files/image206.png" o:title=""/> 3774 3738 </v:shape><![endif]--><![if !vml]><img border=0 width=636 height=108 3775 src="SimpleMagnetic_files/image 207.png" v:shapes="Picture_x0020_72"><![endif]></span></p>3739 src="SimpleMagnetic_files/image175.png" v:shapes="Picture_x0020_72"><![endif]></span></p> 3776 3740 3777 3741 <p class=MsoNormal><o:p> </o:p></p> … … 3833 3797 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 3834 3798 id="Picture_x0020_73" o:spid="_x0000_i1027" type="#_x0000_t75" style='width:237.75pt; 3835 height:51 0.75pt;visibility:visible;mso-wrap-style:square'>3799 height:511.5pt;visibility:visible;mso-wrap-style:square'> 3836 3800 <v:imagedata src="SimpleMagnetic_files/image209.png" o:title=""/> 3837 </v:shape><![endif]--><![if !vml]><img border=0 width=317 height=68 13838 src="SimpleMagnetic_files/image 208.png" v:shapes="Picture_x0020_73"><![endif]><!--[if gte vml 1]><v:shape3801 </v:shape><![endif]--><![if !vml]><img border=0 width=317 height=682 3802 src="SimpleMagnetic_files/image179.png" v:shapes="Picture_x0020_73"><![endif]><!--[if gte vml 1]><v:shape 3839 3803 id="Picture_x0020_74" o:spid="_x0000_i1026" type="#_x0000_t75" style='width:239.25pt; 3840 3804 height:510pt;visibility:visible;mso-wrap-style:square'> 3841 3805 <v:imagedata src="SimpleMagnetic_files/image211.png" o:title=""/> 3842 3806 </v:shape><![endif]--><![if !vml]><img border=0 width=319 height=680 3843 src="SimpleMagnetic_files/image 210.png" v:shapes="Picture_x0020_74"><![endif]></span></p>3807 src="SimpleMagnetic_files/image194.png" v:shapes="Picture_x0020_74"><![endif]></span></p> 3844 3808 3845 3809 <p class=MsoNormal>The magnetic peaks contributing to this peak are the 200,221 … … 3857 3821 <v:imagedata src="SimpleMagnetic_files/image213.png" o:title=""/> 3858 3822 </v:shape><![endif]--><![if !vml]><img border=0 width=632 height=669 3859 src="SimpleMagnetic_files/image 212.png" v:shapes="Picture_x0020_75"><![endif]></span></p>3823 src="SimpleMagnetic_files/image195.png" v:shapes="Picture_x0020_75"><![endif]></span></p> 3860 3824 3861 3825 <p class=MsoNormal><span class=GramE>which</span> shows that the ferromagnetic -
Tutorials/SimpleMagnetic/SimpleMagnetic_files/filelist.xml
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