[Wannier] Symmetry points in WANNIER versus symmetry points in PWSCF

Elio Physics Elio-Physics at live.com
Sun Jul 31 01:10:08 CEST 2016


Dear all,


I am trying to compare the band structures generated by PWSCF and by WANNIER functions. I get basically almost the same structures except that the positions of the (Gamma, K, M) points that are different. My structure is hexagonal.  I use the following positions:


K_POINTS crystal_b
4
0.000000 0.000000 0.000000 70
0.500000 0.000000 0.000000 50
0.666666 -0.333333 0.000000 85
0.000000 0.000000 0.000000 1

The positions of Gamma, M, K Gamma are 0, 0.5774, 0.9107, 1.5773 whilst setting the same path in Wannier win file I get other positions for the same coordinates almost the double:
0, 1.12655, 1.77696, and 3.07778. Could anyone tell me what is happening?

Elio
University of Rondonio
Brazil

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