<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial">You can obtain thermodynamics properties at finite temperature by calculating phonon (ph.x) and treating phonon through QHA method. If temperature was high, you may need an-harmonic calculation by d3.x<br><br><div>--<br>GAO Zhe<br>CMC Lab, Materials Science & Engineering Department,<br>Seoul National University, South Korea<br>
</div><div id="divNeteaseMailCard"></div><br>At 2012-02-09 22:49:27,"bramha pandey" <pandey.bramha@gmail.com> wrote:<br> <blockquote id="isReplyContent" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"><br clear="all">Dear QE users...<br><br>i want to know how we can introduce the temperature in our equilibrium system(i.e after running scf with proper setting of lattice parameter, ecut and k point, we get ground state total energy(T=0) in scf run).<br>
<br>As i read somewhere that SCF will gives the minimum total energy at T=0, because in DFT there is no term of temperature.<br>May be i am wrong but can we introduce temperature by changing the any parameter in input file of pw.x. Actualy i want to generate the phonon by the thermal excitation in my input file by increasing the temperature of my system or any other means by which i can generate phonon for thermo-dynamical property calculation of the system.<br>
<br>Any type of help will be appreciable . <br><br><br>-- <br>Thanks and Regards<br>Bramha Prasad Pandey<br>Assistant Professor (Electronics and Communication Engg)<br>GLA Group of Institutions, Mathura.<br>Ph. No. 08954143009<br>
email id <a href="mailto:pandey.bramha@gmail.com">pandey.bramha@gmail.com</a><br> <a href="mailto:bpglaitm@yahoo.co.in">bpglaitm@yahoo.co.in</a><br>
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