Fully relativistic pseudopotentials
Fully relativistic pseudopotentials generated by
the MBK (PRB 47, 6728 (1993)) scheme within LDA (CA19) and GGA (PBE19) which contain
a partial core correction and fully relativistic effects including spin-orbit coupling,
while the partial core correction is zero for a helium atom.
Pseudo-atomic orbitals
The number below the symbol means a cutoff radius (a.u.) of the confinement
potential. These file includes fifteen radial parts for each angular
momentum quantum number l (=0,1,2,3). The basis functions were generated by ADPACK, and
never optimized by OpenMX.
Since He_CA19.vps and He_PBE19.vps include the 1s state (2 electrons)
as the valence state, the minimal basis set is He*.*-s1.
Benchmark calculations by the PBE19 pseudopotential
(1) Calculations of the band dispersion in the fcc structure,
where the non-spin polarized collinear calculation with the lattice constant of 4.5 Ang.
was performed using He_PBE19.vps and He8.0-s2p2d1, and the origin of the energy is
taken to be the top of the valence band.
The input file used for the OpenMX calculations can be found at
Hefcc-Band.dat .
For comparison the result by the Wien2k code is also shown, where
the calculation was performed by default setting in the Ver. 9.1 of Wien2k
except for the use of RMT x KMAX of 12.
