KGAMMA

KGAMMA = [logical]
Default: KGAMMA = .TRUE. 

Description: Whether the automatically generated k-point mesh is centered at the $\mathrm{\Gamma }$ point.

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If KGAMMA = .TRUE. (default), the k-point mesh is centered at the $\mathrm{\Gamma }$ point, i.e., it always includes the $\mathrm{\Gamma }$ point. If KGAMMA = .FALSE., the mesh is shifted away from the $\mathrm{\Gamma }$ point as in a Monkhorst-Pack grid. The number of k points on the mesh is controlled by KSPACING and KSPACING_OPT.

Important: If a KPOINTS file is present, VASP ignores the KGAMMA and KSPACING tags. Likewise, if a KPOINTS_OPT file is present, VASP ignores KGAMMA and KSPACING_OPT.

Related tags and articles

Tags: KSPACING, KSPACING_OPT

Workflows that use this tag