<div dir="ltr"><div><div>Dear Isaiah,<br></div> thanQ very much for the repl and the problem got fixed as it is due to negative frequencies.<br><br></div>thanks,<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Dec 26, 2017 at 6:20 PM, Isaiah Moses <span dir="ltr"><<a href="mailto:imoses87@gmail.com" target="_blank">imoses87@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div><div>Hi Pachineela,</div><div><br></div>Merry Christmas and happy new year in advance to you.<br><br></div>Check your phonon frequencies.<br></div>It looks as if you have negative (imaginary) frequencies and hence the "NAN" in your calculation.<br><br></div>Regards,<br></div>Isaiah<br></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="h5">On Mon, Dec 25, 2017 at 6:58 PM, pachineela rambabu <span dir="ltr"><<a href="mailto:rams.hcu@gmail.com" target="_blank">rams.hcu@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><div dir="ltr"><div><div>Dear Forum, New year greetings to all.<br></div> After running lambda.x, I got the following output in lambda.out:<br><br><b> lambda = 0.919464 ( NaN ) <log w>= NaN K N(Ef)= 6.988731 at degauss= 0.005<br> lambda = 0.942358 ( NaN ) <log w>= NaN K N(Ef)= 7.622487 at degauss= 0.010<br> lambda = 0.966873 ( NaN ) <log w>= NaN K N(Ef)= 7.828849 at degauss= 0.015<br> lambda = 0.975391 ( NaN ) <log w>= NaN K N(Ef)= 7.866457 at degauss= 0.020<br> lambda = 0.978280 ( NaN ) <log w>= NaN K N(Ef)= 7.865753 at degauss= 0.025<br> lambda = 0.977141 ( NaN ) <log w>= NaN K N(Ef)= 7.844630 at degauss= 0.030<br> lambda = 0.972642 ( NaN ) <log w>= NaN K N(Ef)= 7.804841 at degauss= 0.035<br> lambda = 0.965423 ( NaN ) <log w>= NaN K N(Ef)= 7.747033 at degauss= 0.040<br> lambda = 0.955786 ( NaN ) <log w>= NaN K N(Ef)= 7.672706 at degauss= 0.045<br> lambda = 0.944028 ( NaN ) <log w>= NaN K N(Ef)= 7.584531 at degauss= 0.050<br>lambda omega_log T_c<br> 0.91946 NaN NaN<br> 0.94236 NaN NaN<br> 0.96687 NaN NaN<br> 0.97539 NaN NaN<br> 0.97828 NaN NaN<br> 0.97714 NaN NaN<br> 0.97264 NaN NaN<br> 0.96542 NaN NaN<br> 0.95579 NaN NaN<br> 0.94403 NaN NaN<br></b><br></div>Actually, I used spin-orbit coupling in my calculation. My <a href="http://lambda.in" target="_blank">lambda.in</a> file is:<b><br><br>13.0 0.005 1 <br> 12<br> 0.0000000 0.0000000 0.0000000 1.00<br> 0.2500000 0.1443376 0.0000000 6.00<br> 0.5000000 0.2886751 0.0000000 3.00<br> 0.2500000 0.4330127 0.0000000 6.00<br> 0.0000000 0.0000000 0.0763909 2.00<br> 0.2500000 0.1443376 0.0763909 12.00<br> 0.5000000 0.2886751 0.0763909 6.00<br> 0.2500000 0.4330127 0.0763909 12.00<br> 0.0000000 0.0000000 0.1527819 1.00<br> 0.2500000 0.1443376 0.1527819 6.00<br> 0.5000000 0.2886751 0.1527819 3.00<br> 0.2500000 0.4330127 0.1527819 6.00<br>elph_dir/elph.inp_lambda.1<br>elph_dir/elph.inp_lambda.2<br>elph_dir/elph.inp_lambda.3<br>elph_dir/elph.inp_lambda.4<br>elph_dir/elph.inp_lambda.5<br>elph_dir/elph.inp_lambda.6<br>elph_dir/elph.inp_lambda.7<br>elph_dir/elph.inp_lambda.8<br>elph_dir/elph.inp_lambda.9<br>elph_dir/elph.inp_lambda.10<br>elph_dir/elph.inp_lambda.11<br>elph_dir/elph.inp_lambda.12<br>0.13 </b><br clear="all"><div><div><div><div><br></div><div>Please tell me where am I wrong and how to get Tc?</div><div><br></div><div>thanks in advance,<span class="m_85608907021394252HOEnZb"><font color="#888888"><br></font></span></div><span class="m_85608907021394252HOEnZb"><font color="#888888"><div>-- <br><div class="m_85608907021394252m_5311992273971077765gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div><div><b>P. Rambabu</b><br></div>PhD Scholor<br></div><div>Physics Department, IIT Hyderabad</div><div>Kandi, SangaReddy, Telangana, India.<br></div></div>Mobile: 9074508220.<br></div></div></div></div></div></div>
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