[Wien] case.inkram

[Karel Vyborny]

Dear Karima,
there's no good short answer. First of all, it's an approximation that a 
single parameter (Gamma) rather than k-dependent relaxation time can be 
used. In principle, you can calculate such Gamma by ab initio methods but 
in practice, you either fit it to optical spectra or estimate it from the 
DC conductivity.

Best regards,

Karel


--- x ---
dr. Karel Vyborny
Fyzikalni ustav AV CR, v.v.i.
Cukrovarnicka 10
Praha 6, CZ-16253
tel: +420220318459


On Sat, 16 Jan 2021, karima Physique wrote:

> Dear WIEN2k users,for intraband contribution, where can I  find the value
> of Gamma for Drude term
> 
>