<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;color:#000000">You have to generate a supercell and occupy statistically. Not so easy to get correct.</div></div><br><div class="gmail_quote"><div dir="ltr">On Mon, Jan 7, 2019 at 2:39 PM Ashwani Kumar <<a href="mailto:ashwani.ism@gmail.com">ashwani.ism@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<div>**************Best Wishes for Year 2019***************</div>
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<div>Hi,</div>
<div>How to contruct a structure with fractional site occupancy by different atoms.
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<div>formula: InEuCe(MoO4)3<br>
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<div>Space group Name : I 41/a</div>
<div>Tetragonal Lattice : (5.25, 5.25, 11.49) & 90.0</div>
<div>_atom_site_label<br>
_atom_site_fract_x<br>
_atom_site_fract_y<br>
_atom_site_fract_z<br>
_atom_site_occupancy<br>
_atom_site_adp_type <br>
_atom_site_type_symbol<br>
In1 0.00000 0.25000 0.62500 0.50000 Uiso Ag <br>
Eu1 0.00000 0.25000 0.62500 0.50000 Uiso Eu <br>
Ce1 0.00000 0.25000 0.62500 0.50000 Uiso Ca <br>
Mo1 0.00000 0.25000 0.12500 1.50060 Uiso Mo <br>
O1 0.13361 0.01598 0.21022 1.50060 Uiso O <br>
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<div>With given space group, unit cell gives two positions for cation which can be split 50-50 for two different cations while required is three (33%).
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<div>thanks, <br>
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<div>A. KUmar<br>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><span style="font-size:12.8px">Professor Laurence Marks</span><br></div><div dir="ltr"><span style="font-size:12.8px">"Research is to see what everybody else has seen, and to think what nobody else has thought", </span><span style="font-size:12.8px">Albert Szent-Gyorgi</span><br><a href="http://www.numis.northwestern.edu" target="_blank">www.numis.northwestern.edu</a> ; <span style="font-size:12.8px">Corrosion in 4D: </span><a href="http://MURI4D.numis.northwestern.edu" style="font-size:12.8px" target="_blank">MURI4D.numis.northwestern.edu</a><div><span style="font-size:12.8px">Partner of the CFW 100% program for gender equity, </span><a href="http://www.cfw.org/100-percent" style="font-size:12.8px" target="_blank">www.cfw.org/100-percent</a></div><div>Co-Editor, Acta Cryst A</div></div></div></div></div></div></div></div></div></div></div>