It is currently Sun Jun 16, 2019 2:46 am

Tell a friend!


Post new topic Reply to topic  [ 3 posts ] 
Two-band isotropic Eliashberg equation 
Author Message

Joined: Wed Oct 03, 2018 8:26 am
Posts: 8
University: NYU Shanghai
Post Two-band isotropic Eliashberg equation
Dear EPW developers,
I am wondering whether the current implementation of EPW enables users to solve two-band (or even multi-band) isotropic Eliashberg equation.
So far if we provide a total "a2f" file, a "one-band" isotropic Eliashberg equation is solved (one Z and one Delta). Is it possible that we provide multiple "a2f" files (a2f_11, a2f_12, a2f_21, a2f_22) and a "two-band" isotropic Eliashberg equation is solved (two Z and two Delta)?
A closely related question is: can EPW calculate band-resolved "a2f"? A post on this forum says that if we fix "ibnd" and "jbnd" in eliashberg_setup.f90, then we can get band-resolved "a2f". But does that mean for a two-band system, we need to run epw four times in order to get "a2f_11", "a2f_12", "a2f_21" and "a2f_22"? Is there a convenient way to get band-resolved "a2f" from EPW?
Thank you very much.

Dr. Hanghui Chen
Department of Physics
NYU Shanghai and New York University


Thu May 30, 2019 2:23 pm
Profile E-mail

Joined: Fri Jan 22, 2016 6:48 pm
Posts: 112
University: SUNY-Binghamton
Post Re: Two-band isotropic Eliashberg equation
Hi,

At this point the code only works with a single-band in the isotropic case.

The code can calculate a2fij(ik,iq,ibnd,jbnd,iwph) but that specific subroutine is not used at this point. The subroutine is named evaluate_a2fij and can be found in superconductivity_aniso.f90

Best,
Roxana

_________________
Roxana Margine
Assistant Professor
Department of Physics, Applied Physics and Astronomy
Binghamton University, State University of New York
PO Box 6000
Binghamton, NY 13902-6000


Sat Jun 01, 2019 1:12 pm
Profile

Joined: Wed Oct 03, 2018 8:26 am
Posts: 8
University: NYU Shanghai
Post Re: Two-band isotropic Eliashberg equation
Dear Roxana,
Thank you very much.

Dr. Hanghui Chen
NYU Shanghai and New York University


Sun Jun 02, 2019 7:26 am
Profile E-mail
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 


Who is online

Users browsing this forum: Google [Bot] and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
cron
Powered by phpBB © phpBB Group.
Designed by Vjacheslav Trushkin

(All content on this board is governed by and is the sole responsibility of the board administrator.)


Gratis forum Free forum hosting| gratis phpbb3 forum | phpbb3 styles