how to switch off the local-field effect in GW calculation?

GW, Bethe-Salpeter …

Moderators: maryam.azizi, bruneval

Locked
yuanxun
Posts: 4
Joined: Fri Apr 23, 2010 3:36 am

how to switch off the local-field effect in GW calculation?

Post by yuanxun » Tue Sep 20, 2011 9:08 am

Dear All,
I want to study how the LF effect affects the band-structure of a material, is there any way to switch off the local-field effect in GW
calculation?
Thanks in advance!

Yuanxun

ldamewood
Posts: 14
Joined: Tue Mar 09, 2010 11:39 pm

Re: how to switch off the local-field effect in GW calculati

Post by ldamewood » Fri Apr 27, 2012 2:24 am

Sorry for the reply 6 months after the post. I haven't been using abinit for a while so I haven't been looking at the forums. I wrote a short paper on the local-field effects in half metals using GW. I simply deleted the off-diagonal terms (G != G') of the susceptibility file using a matlab program. I haven't come up with a simple way to switch them off without making many modifications to the code.

Locked