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Ni 100 surface bandstructure

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Task

Calculation of the bandstructure of a Ni (100) surface.

Input

POSCAR

fcc (100) surface                       
   3.53000000000000     
     0.5000000000000000    0.5000000000000000    0.0000000000000000
    -0.5000000000000000    0.5000000000000000    0.0000000000000000
     0.0000000000000000    0.0000000000000000    5.0000000000000000
   Ni
     5
Selective dynamics
Direct
  0.0000000000000000  0.0000000000000000  0.0000000000000000   F   F   F
  0.5000000000000000  0.5000000000000000  0.1000000000000014   F   F   F
  0.0000000000000000  0.0000000000000000  0.2000000000000028   F   F   F
  0.5000000000000000  0.5000000000000000  0.3004245271852446   T   T   T
  0.0000000000000000 -0.0000000000000000  0.3959414474619545   T   T   T
 
  0.00000000E+00  0.00000000E+00  0.00000000E+00
  0.00000000E+00  0.00000000E+00  0.00000000E+00
  0.00000000E+00  0.00000000E+00  0.00000000E+00
  0.00000000E+00  0.00000000E+00  0.00000000E+00
  0.00000000E+00  0.00000000E+00  0.00000000E+00

INCAR

  ICHARG = 11
general:
  SYSTEM = clean (100) nickel surface
  ENMAX  = 270
  ISMEAR = 2 ; SIGMA = 0.2
  ALGO = Normal
    
spin:
  ISPIN = 2
  MAGMOM = 5*1
    
  LORBIT = 11
  • ICHARG=11: Read in charge density (1) and do not update it (+10) - non-selfconsistent run.
  • N.B.: You need to topy the CHGCAR file of example Ni 100 surface DOS into the directory where you want to run this calculation.

KPOINTS

kpoints for band-structure G-X-M-G
  13
reziprok
   .00000   .00000   .00000    1
   .12500   .00000   .00000    1
   .25000   .00000   .00000    1
   .37500   .00000   .00000    1
   .50000   .00000   .00000    1

   .50000   .12500   .00000    1
   .50000   .25000   .00000    1
   .50000   .37500   .00000    1
   .50000   .50000   .00000    1

   .37500   .37500   .00000    1
   .25000   .25000   .00000    1
   .12500   .12500   .00000    1
   .00000   .00000   .00000    1

Fig Ni 100 surfband 1.png

  • 13 k points along line .
  • The coordinates are given in reciprocal coordinates.
  • Each point has weight 1.

Calculation

  • In the OUTCAR file the status message on the actual job (non-selfconsistent calculation) is given:
...
Static calculation
charge density remains constant during run
spin polarized calculation
...
  • The bandstructure can be plotted using p4vasp:

Fig Ni 100 surfband 3.png

  • The example output for the projected bandstructure consists mainly out of bulk like bands. The Yelllow dots mark the surface loclizations:

Fig Ni 100 surfband 2.png

Download

Ni100clean_band.tgz

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