EPW Forum

Dear EPW developers and users, Recently I used EPW 5.4.1 to calculate the mobility of 2D WSi2N4. When I performed the mobility calculation after obtaining the electron-phonon matrix elements, EPW can not read the Mobility CB Fermi level correctly. The output information is listed below. Could you pl...

Dear Lee,

It works. Thank you very much!

With best regards,
Hao

Dear Lee,

Thanks for the reply. I have attached the log files here.

With best regards
Hao Zhang

The log file for epw calculation.

Dear Developers, Recently I used EPW 5.4.1 to calculate electron-phonon coupling in two-dimensional WSi2N4 and met EPW running error with the information, ------------------------------------------------------------------- WANNIER : 2743.12s CPU 8273.27s WALL ( 1 calls) -----------------------------...

Thank you very much! It works! Dear plasmon: Probably, the following change in EPW v5.3 might be the cause of your error. Excerpt from https://docs.epw-code.org/doc/Releases.html Change in the file name of prefix.epmatwp (prefix.epmatwp1 changed into prefix.epmatwp) In addition, I don't know about E...

Dear developers, Recently we met a problem when using EPW5.3 on the electron-phonon matrix data calculated by EPW5.0. The error message is listed as follows, and I have attached the epw.in here. Could you please tell me how to fix this problem? Thank you very much! Best regards, Hao Zhang ``:oss/ `....

Thank you very much! It works! Dear Hao Zhang: Since you are using EPW v5.3, you should not use nosym=.true. in nscf.in. Please read carefully the Releases page at https://docs.epw-code.org/doc/Releases.html . Additionally, your k and q grids are not commensurate. Please modify the number of grids. ...

Dear Developers,

Recently I met a problem when using EPW to study 2D materials. I have finished scf-ph-q2r-nscf, and some unknown error takes place after w90. I have attached the in and out files here.Could you please tell me how to fix this problem? Thank you very much!

Best,
Hao Zhang

Dear Lee, Thank you very much! It works. I have a question regarding the polaron calculations. I used the following tags in the epw.in, as attached here. But it does not work, outputting nothing about polaron in the log file. Could you please tell me how to fix this problem? Thank you very much! Bes...