[Pw_forum] Raman for graphene

[Ari P Seitsonen]

Dear PL Gong,

   Sometimes the things are not that simple to be programmed and provided 
to others - please try to learn about the difference between non-resonant 
and resonant Raman.

   You can also have a look at the papers of Michele Lazzeri and Francesco 
Mauri, since they have been working into that direction. The last time I 
discussed with one of them I understood that there is not yet even a 
general theory that would describe the resonant case, thus no 
implementation - maybe in the future. Their method was/is also very heavy.

     Greetings from Zurich,

        apsi

-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-
   Ari Paavo Seitsonen / Ari.P.Seitsonen at iki.fi / http://www.iki.fi/~apsi/
   Ecole Normale Supérieure (ENS), Département de Chimie, Paris
   Mobile (F) : +33 789 37 24 25    (CH) : +41 79 71 90 935


On Sat, 25 Oct 2014, plgong wrote:

> Dear PWscf users,
>     As we know, the Raman spectra of the metal can not supported by QE. However, the spectra of pure or doped graphene can be detected in experiments. So, I do not understand the underlying reason why it is not immplemented by QE?
>    BTW, who can provide me with infomation on method or relative software that can calculate Raman spectra of semi-metal graphene?
>
> Best wishes
>
> PL Gong
> ISSP hefei China
>
>
>
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