<div dir="ltr"><div dir="ltr">Dear QE users,</div><div dir="ltr"><br></div><div dir="ltr">I have some problem in introducing a base-centered orthorhombic structure (ibrav=9) to QE.</div><div dir="ltr"><br></div><div dir="ltr">
I have entered the cell parameters in A, B, C, cosAB, cosBC, cosAC, and atomic positions in fractional coordinate (crystal) in my input file; however, Xcrysden does not show me what I expected to see. for example, not all the angles are 90 degrees.</div>
<div dir="ltr"><br></div><div dir="ltr">Lets say I have a crystal with space group Cmcm (#63) and a=2.406, b=4.615, c=2.749 (A), and one atom at (0, 0.0703, 0.25)</div><div dir="ltr">Now, what do you put for A,B,C and the atomic positions?</div>
<div dir="ltr"><br></div><div dir="ltr">Thanks for your time!</div><div dir="ltr"><br></div><div dir="ltr">P.S: The numbers are taken from the table 2 of the supplemental material of: Phys. Rev. B 84, 104118 (2011)</div>
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<div dir="ltr">Amin Torabi<br>Ph.D. Student<br>Chemistry Department<br>The University <i>of</i> Western Ontario<br>London, On Canada, N6A 5B7<br><span style="font-family:'Droid Sans',arial,sans-serif;font-size:13px;border-collapse:collapse;color:rgb(32,32,32)">Phone: <a value="+15196612111" style="color:rgb(103,117,58)">519-661-2111</a> Ext: 87871</span><div>
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