[Pw_forum] Si pseudopotential for Silicene

[Andrey Chibisov]

Dear Colleagues,
I can not get the correct band gap for silicene. 
I used the pseudopotential and all the parameters as in the work Appl. Phys. Lett. 106, 183107 (2015) (http://dx.doi.org/10.1063/1.4919885). 
Please help me with pseudopotential.
With ''Si.rel-pbesol-n-rrkjus-psl.0.1.UPF'' pseudopotential I got the band gap about 0.7 eV in K point, but according to work Appl. Phys. Lett. 106, 183107 it was 1.5 meV.

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Best regards,
Andrey Chibisov. Ph.D.
Numerical method of mathematical physics Laboratory,
Computational Center, Russian Academy of Sciences.
Khabarovsk, Russia
Web page: https://www.researchgate.net/profile/A_Chibisov
http://ru.linkedin.com/pub/andrey-chibisov/55/253/986/en