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["D. R. Hamann" <drhamann@mat-simresearch.com>]

Dear Edouard,

The best approach to this is to calculate the GW band structure on a uniform grid and use maximally localized Wannier functions to produce an accurate interpolated band structure.  This requires setting the input variable prtwant=3, as well as several other steps.  See the following (in version 5.7.4):

    The wannier90 tutorial (and the key references cited there)
    tests/wannier90/Input/t03.in & t03o_DS7_w90.win
    R. Shaltaf et al., Phys. Rev. B 79, 195101 (2009) and D. R. Hamann and D. Vanderbilt, Phys. Rev. B 79, 045109 (2009).

Depending on the system you are treating, it may take some experimentation to find the best choice of Wannier functions, energy windows, etc. to get the results you  want.

Good luck.

Don Hamann

Edouard Duriau wrote:

66650c2d0906010128i734ee98y3a09b0fd550ae143@mail.gmail.com" type="cite">Hello all!

I would like to know if it is possible to run a simulation that calculates GW corrections for the whole band structure.
Is there a specific command I didn't find or do I have to do it another way?

Thanks a lot upfront!

Edouard Duriau

-- 
D. R. Hamann
Mat-Sim Research LLC    | Department of Physics
P.O. Box 742            |  and Astronomy
Murray Hill, NJ 07974   | Rutgers University
phone: 908-370-8079     | 732-445-5500, x4381

email: drhamann@mat-simresearch.com