Dear Eliya,
For a cluster, I think there is no energy bands, therefore no intraband
transition.
/Guangping
On 2015/4/27 14:43, Eliya Asmani wrote:
Dear Guangping
Thanks for the your quick reply.
As I know the intarband transition (Drude term) is very important for
my case.
I'm so sorry! What is your mean about "Drude term is only for a
system with at least one dimension periodical" you mean the Siesta
code can't calculate for cluster system or Drude term is not important
in cluster system?
Eliya
On Mon, Apr 27, 2015 at 4:21 PM, Guangping Zhang <[email protected]
<mailto:[email protected]>> wrote:
Dear Eliya,
I think you do not need to include the Durde term for a cluster
calculation. The Drude term is only available for a system with at
least one dimension periodical.
Kind regards,
/Guangping
On 04/27/2015 12:44 PM, Eliya Asmani wrote:
Dear user
I want to calculate real and imaginary parts of the permittivity
for some metals
(for cluster not bulk).
How can I include Drude term for intarband transition of the
permittivity?
In the *.EPSIMG, (was generated after optical calculation) the
value of W_p is written 0.000. I think this value should be
non-zero, to include Drude term.
How can I determinate W_p?
Regards,
Eliya
