[Pw_forum] Is it possible to calculate the IR spectra using finite displacement method using QE?

[Paolo Giannozzi]

You can compute only effective charges with linear response. Once you have
effective charges and phonon modes, you can compute the IR cross sections

Paolo

On Tue, Nov 10, 2015 at 9:41 AM, yin li <liyincumt at gmail.com> wrote:

> Dear QE community,
>
> I am looking for a way to obtain IR spectra using finite displacement in
> QE? I have used phonopy to generate the supercell and atomic displacements.
> After pwscf calculation, phonopy gave me a force set file. I wonder if it
> is possible to explore this file to calculate IR spectra of my crystal?
>
> Thank you very much!
>
> Best Regards,
> Yin
>
> --
> ------------------------------
> Dr. Yin Li
> Department of Biophysics,Medical School, University of Pecs,
> No.12 Szigeti Street, Pecs, H-7624, HUNGARY
> Phone: +36-72-535271/36271
>
> _______________________________________________
> Pw_forum mailing list
> Pw_forum at pwscf.org
> http://pwscf.org/mailman/listinfo/pw_forum
>



-- 
Paolo Giannozzi, Dept. Chemistry&Physics&Environment,
Univ. Udine, via delle Scienze 208, 33100 Udine, Italy
Phone +39-0432-558216, fax +39-0432-558222
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.quantum-espresso.org/pipermail/users/attachments/20151110/8f0c7ee1/attachment.html>