Constraining local magnetic moments

From VASP Wiki

Task

Constraining the local magnetic moments on an Fe dimer.

Input

POSCAR

Fe dimer                               
 1.00000000000000000
     8.0000000000000000    0.0000000000000000    0.0000000000000000
     0.0000000000000000    8.0000000000000000    0.0000000000000000
     0.0000000000000000    0.0000000000000000    8.0000000000000000
   2
Cartesian
 3.00  0.00  0.00
 5.00  0.00  0.00

INCAR

SYSTEM        = Fe dimer
ISTART        = 0
ISYM          = 0
LNONCOLLINEAR = .TRUE.
MAGMOM        = 0 0 3   0 0 3
VOSKOWN       = 1
LORBIT        = 11
  
! mix slowly when increasing LAMBDA 
# AMIX          = 0.1
# BMIX          = 0.00001
# AMIX_MAG      = 0.2
# BMIX_MAG      = 0.00001
  
# I_CONSTRAINED_M = 1
# RWIGS           = 1.0
# LAMBDA         = 10
# M_CONSTR        = 0 0 1  0 0 1
  • Symmetry is switched off (ISYM=0).
  • Initially moments for ferromagnetic calculation are initialized.

KPOINTS

k-points
0
Monkhorst Pack
  1   1   1
  0.  0.  0.
  • A single k point in the calculation is sufficient.

Calculation

Download

4_5_Fe_dimer.tgz


To the list of examples or to the main page