EPW Forum

Hi Hari,

I see. Thanks a lot!

Best,
Prachi.

Hi all, I'm trying to restart a calculation where I believe it should read previously written files from the disk (all needed files such as crystal.fmt, epwdata.fmt, etc are present in the disk). But I'm getting the following statement printed in my output which I don't understand ...

Hi Hari,

Thanks a lot. I understand now

Best,
Prachi.

Hi everyone,

I wanted to ask what is the "Summed el-ph coupling" printed in the end of .a2f output file?
Also, just to clarify "Integrated el-ph coupling" is the lambda integrated over frequency, right?

Thanks!

Best regards,
Prachi.

Hi Hari,

I see. Thanks a lot for the explanation.

Best regards,
Prachi.

Hi Hari, Thanks for your reply. Yes, the coupling constant is very small. I've a small question, the output files have '*******' in place of Tc. Does this mean its zero? Because if I plug the numbers for coupling constant and w_log in the output file to find Tc, I got a very large number. Thanks ...

Dear all, I'm trying to find superconducting properties of PdCoO2 solving isotropic Eliashberg equations. I've been able to get correct band structure using wannierization and phonons with tag lifc=TRUE. But whenever I try to solve Eliashberg equations, I get very large values of Allen-dynes Tc ...

Hi Hari, Thanks a lot for your reply. I'm sorry for the vague question. My question was based on my result that if I take "default" value lifc = False, I got incorrect phonon dispersion but a correct dispersion with it being true. So, I don't quite fully understand that how the phonon wannierization ...

Dear H. Lee and Hari, As per your suggestion, I performed epw with lifc=.True. with asr = "simple". I'm able to reproduce the phonon dispersion of matdyn correctly. To understand it correctly, now my dynamically matrices are evaluated using ifc.q2r file and not with wannierization, right? Please ...

Hi Hari,

I have use zasr = 'simple' in my q2r input file. So, the default value of EPW should work in my case.

Best regards,
Prachi.