[Wien] question about optical properties

[Mona Rahimian]

hi
I relax my supercell. when I want to initial my nano layer, I have this error in nn
" case.inst not consistent with Z 

edit case.inst and rerun lstart:
which parameter should be chang?
thanks
 
-- 

Mona Rahimian MSc Student

Physics Department,

College of Sciences

Shiraz University, Shiraz, Iran

E-mail address:rahimian91 at ymail.com 



________________________________
 From: ‪Peter Blaha‬ ‪<pblaha at theochem.tuwien.ac.at>‬
To: ‪A Mailing list for WIEN2k users‬ ‪<wien at zeus.theochem.tuwien.ac.at>‬ 
Sent: Tuesday, 28 October 2014, 4:41:30
Subject: Re: [Wien] question about optical properties
 


In practice they are the same.


In principle you have to calculate in addition the interband transitions 

(6 in joint) and get the plasma frequency.


This plasma frequency should be added as input in case.inkram, but I 

guess it is not programmed for a spin-polarized case.


As it concerns only a small region around E=0, you probably can forget 

it (it depends on what you want to calculate exactly.


On 10/07/2014 03:50 PM, ben amara imen wrote:

> Dear all ,

>

> I'm working on magnetic semiconductor: it is a half metal :  a

> semiconductor for spin up and a metal for spin down.

>

> When I calculate the optical properties , I do it for spin up ( a

> semiconducting aspect )  and for spin down ( metallic aspect) , then I

> addjoint the two spin up-dn

> *My question is:*

> The calculation steps are the same for spin up and down? there is no

> difference between them . I mean : in the case of spin down when the

> compound is a metal, I introduce the intraband transitions even if the

> compound is a semi metal??

>

> Waiting your reply and thanks in advance

>

> Best Regards

> Imen

>

>

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-- 


                                       P.Blaha

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