NUM_WANN

NUM_WANN = [integer]
Default: NUM_WANN = NBANDS

Description: Controls the number of Wannier orbitals to be constructed.

This tag is used to determine the number of Wannier orbitals to be constructed in the SCDM method.

Since VASP 6.2.0, NUM_WANN also determines the number of Wannier orbitals to be used with wannier90. Note that the num_wann value written to the wannier90.win file is always the value of NUM_WANN known by vasp.

When using LOCPROJ for Wannierization, it is not necessary to set NUM_WANN. In this case, the number of Wannier orbitals is automatically set equal to the number of local functions.

Related tags and articles