the sign of spins

Deals with issues related to computation of optical spectra in reciprocal space: RPA, TDDFT, local field effects.

Moderators: Davide Sangalli, andrea.ferretti, myrta gruning, andrea marini, Daniele Varsano, Conor Hogan

Post Reply
samaneh
Posts: 165
Joined: Tue Jan 21, 2014 9:03 am

the sign of spins

Post by samaneh » Mon Oct 17, 2016 12:47 pm

Dear Developers,
I did bse-yd for a spin polarized system
so I got 3 signs for spins (1, -1, ***) in the output file of ypp -e a!!!
What are their meaning??
1 means spin up but which of the rest is for spin down???
In the output of GW calculation (o.qp),
the spins are represented by 1 and ***!!!

Thank you in advance.
S. Ataei, PhD student at University of Tehran, Iran.

User avatar
Daniele Varsano
Posts: 4198
Joined: Tue Mar 17, 2009 2:23 pm
Contact:

Re: the sign of spins

Post by Daniele Varsano » Mon Oct 17, 2016 12:50 pm

Dear Samaneh,
thanks for posting,
it looks a problem of formatting, which release are you using and can you please attach the outputs?

Thanks,
Daniele
Dr. Daniele Varsano
S3-CNR Institute of Nanoscience and MaX Center, Italy
MaX - Materials design at the Exascale
http://www.nano.cnr.it
http://www.max-centre.eu/

samaneh
Posts: 165
Joined: Tue Jan 21, 2014 9:03 am

Re: the sign of spins

Post by samaneh » Mon Oct 17, 2016 2:04 pm

Dear Daniele,

Thank you for your reply.
I attached it here.
You do not have the required permissions to view the files attached to this post.
S. Ataei, PhD student at University of Tehran, Iran.

User avatar
Daniele Varsano
Posts: 4198
Joined: Tue Mar 17, 2009 2:23 pm
Contact:

Re: the sign of spins

Post by Daniele Varsano » Mon Oct 17, 2016 2:10 pm

Dear Samaneh,
we will have a look to the reason of that.

Anyway, the "***" refers to the "-1" which is a notation for spin down.

Daniele
Dr. Daniele Varsano
S3-CNR Institute of Nanoscience and MaX Center, Italy
MaX - Materials design at the Exascale
http://www.nano.cnr.it
http://www.max-centre.eu/

User avatar
Davide Sangalli
Posts: 640
Joined: Tue May 29, 2012 4:49 pm
Location: Via Salaria Km 29.3, CP 10, 00016, Monterotondo Stazione, Italy
Contact:

Re: the sign of spins

Post by Davide Sangalli » Tue Oct 18, 2016 10:00 pm

Dear Samaneh,
I see you are using yambo-4.0.2.

We released several bug-fixes with yambo-4.0.4:
http://qe-forge.org/gf/download/frsrele ... 107.tar.gz

Could you try that version and let us know if you still have such problem?

Kind regards,
Davide
Davide Sangalli, PhD
CNR-ISM, Division of Ultrafast Processes in Materials (FLASHit) and MaX Centre
https://sites.google.com/view/davidesangalli
http://www.max-centre.eu/

Post Reply