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Dear Pengfei,<br>
<br>
You could improve your calculations if you modify the parameters:<br>
<br>
in case.in1:<br>
<br>
increase Emax value, like 5.0 - 6.0 Ry. Do the same with Emax in
case .inop, and case .injoint<br>
Change several values for k-mesh until you find the better. After this
exercises you maybe find the best value for that calculation.<br>
<br>
I hope helped.<br>
<br>
Nilton<br>
<br>
<blockquote
cite="midb09c1a3e0608310143if71509amc1260e3861ef623c@mail.gmail.com"
type="cite">
<div> nacl.inop <br clear="all">
286 1 number of k-points, first k-point <br>
-5.0 1.0 Emin, Emax for matrix elements<br>
2 <br>
1 Re xx<br>
3 Re zz<br>
ON ON/OFF writes MME to unit 4
</div>
<div> nacl.injoint</div>
<div> 1 14 : LOWER AND UPPER BANDINDEX<br>
0.0000 0.00100 1.0000 : EMIN DE EMAX FOR ENERGYGRID IN ryd <br>
eV : output units eV / ryd / cm-1<br>
4 : SWITCH <br>
2 : NUMBER OF COLUMNS<br>
0.1 0.1 0.3 </div>
<div> nacl.inkram</div>
<div> 0.00 <br>
0.0 </div>
<div> 0 <br>
12.60 plasma frequencies (from joint, opt 6)<br>
0.20 Gammas for Drude terms <br>
</div>
<div>Thanks for all advices!!!!!! I am crazy for the dielectric
constant now:)</div>
<div>
Pengfei<br>
<br>
-- <br>
--------------------------------------------------------------------------<br>
Guan Pengfei, Ph. D<br>
Inst.f. Physics, Tsinghua U, Beijing, China
<br>
Phone: +86-010-6218-2756 Mobile: +86-138-1060-9671<br>
Email: <a href="mailto:miracle.fei@gmail.com">miracle.fei@gmail.com</a>
<br>
WWW: <a href="http://www.phys.tsinghua.edu.cn">http://www.phys.tsinghua.edu.cn</a>
<br>
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