<div dir="ltr"><div><font color="#222222" face="arial, sans-serif"><span style="font-size:12.666666984558105px">Hi </span></font><span style="background-color:rgb(255,255,255);color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px">Sohail</span><span style="background-color:rgb(255,255,255);color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px"> ,</span></div>
<div><span style="background-color:rgb(255,255,255);color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px"><br></span></div><div><span style="background-color:rgb(255,255,255);color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px">Please see carefully the example01 of any versins of the QE.</span></div>
<div><span style="background-color:rgb(255,255,255);color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px">This example tells you how to set K-points for band structure</span></div><div><span style="background-color:rgb(255,255,255);color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px">as well as the </span><span style="background-color:rgb(255,255,255);color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px">structure of nscf file. Be sure for band calculation </span></div>
<div><span style="background-color:rgb(255,255,255);color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px">one has to look for the high symmetric K-points.</span></div><div><span style="background-color:rgb(255,255,255);color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px"><br>
</span></div><div><span style="background-color:rgb(255,255,255);color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px">Best, Kaloni</span></div><div><a href="http://cpms.kaust.edu.sa/Pages/People.aspx?t=Current">http://cpms.kaust.edu.sa/Pages/People.aspx?t=Current</a><span style="background-color:rgb(255,255,255);color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px"> </span></div>
<div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)"><br></span></div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">Message: 2</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">Date: Thu, 19 Jul 2012 13:33:18 +0800 (SGT)</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">From: Sohail Ahmad <</span><a href="mailto:sohailphysics@yahoo.co.in" style="color:rgb(17,85,204);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">sohailphysics@yahoo.co.in</a><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">></span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">Subject: [Pw_forum] Band Structure and nscf calculation</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">To: Plane Wave <</span><a href="mailto:pw_forum@pwscf.org" style="color:rgb(17,85,204);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">pw_forum@pwscf.org</a><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">></span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">Message-ID:</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)"> <</span><a href="mailto:1342675998.31647.YahooMailClassic@web192202.mail.sg3.yahoo.com" style="color:rgb(17,85,204);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">1342675998.31647.YahooMailClassic@web192202.mail.sg3.yahoo.com</a><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">></span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">Content-Type: text/plain; charset="iso-8859-1"</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">Dear</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">I ran scf for MoS2 in K_Points Automatic 4X4x4 mesh with 20 nband and followed calculation for band Structure</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">but i observed that sufficient no. of bands are not there;;</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">then i perform nscf calculation for DOS which seems to be alright</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">So i did scf calculation again in K-Points Automatic 12x12x12 with a little increase in nband (keeping it in mind nband = # of VE/2 +20% more in metal)</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">Now i have few questions</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">1-- While performing band calculation, how should i take K-points</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">???? K-POINTS AUTOMATIC</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">???? 12x12x12 1 1 1</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">??? or the one which i generated manually (150 Points)</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">???? 150</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">???? ---- ---- ---- 1</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">???? ---- ---- ---- 2</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">???? like that,,,,,,,,,,,,,,,,,,,,,,,,,,</span><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">,,,which one is a better option? ????</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">2. While performing nscf calculation, should i write it or no</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">??? restart_mode = 'from_scratch',</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">??? i believe no as it may take longer time and some convergence conflict</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">??? but i need confirmation</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">??</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">??? Its mentioned in the user guide, that occupations = tetrahedra for DOS</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">??? Is it required in every case irrespective of magnetic or non magnetic? ???</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">3? i think nscf is required only for DOS, So can i perform nscf calculation befor the post ? ? ? ?? processing calculation of band calculation? ?????</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">? ? This question i am asking because i am using computational facility of some other??? place which is available to me for short time only and i am running short of time</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">Sohail</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">KKU</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">SAUDI</span>
</div>