epw for ferromagnetic system

Post here questions linked with issue while running the EPW code

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inoka
Posts: 37
Joined: Sun Oct 16, 2016 5:41 pm
Affiliation:

epw for ferromagnetic system

Post by inoka »

Dear Developers

I need to get the relaxation time of a ferromagnetic system. But when I use nspin=2 with starting_magnetization in the scf.in and nscf.in, the code complains with the error below.

from epw_readin : error # 1
El-ph and spin not implemented


So could you please let me know if there is other way to do this?

Thank you in advance

Inoka

carla.verdi
Posts: 155
Joined: Thu Jan 14, 2016 10:52 am
Affiliation:

Re: epw for ferromagnetic system

Post by carla.verdi »

Dear Inoka,

Unfortunately as you saw EPW does not work for magnetic systems. I believe it is implemented in the PHonon code - even if the summary in the header of phonon.f90 says differently - and if so we should look into implementing it in EPW in the near future.

Best,
Carla

inoka
Posts: 37
Joined: Sun Oct 16, 2016 5:41 pm
Affiliation:

Re: epw for ferromagnetic system

Post by inoka »

Dear Dr. Carla

Thank you very much for your reply.

Yes. I think it is great if it is possible to do that. Because I know this EPW code is the only way to get the relaxation time of a system. And mostly for metallic compounds we need to add metallic behavior.

I kindly request from you to add this feature to EPW.

Thank you
Inoka

Ahmad1096
Posts: 1
Joined: Wed Nov 10, 2021 5:51 pm
Affiliation: Student

Re: epw for ferromagnetic system

Post by Ahmad1096 »

Dear Inoka,

I got this same error while calculating the resistivity of my system. Did you find a solution? As i see your post is quite old.



Thanks.
Ahmad.

hlee
Posts: 415
Joined: Thu Aug 03, 2017 12:24 pm
Affiliation: The University of Texas at Austin

Re: epw for ferromagnetic system

Post by hlee »

Dear Ahmad:

EPW still doesn't support the case of nspin=2.

Sincerely,

H. Lee

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