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! GaAs using the Perdew-Burke-Ernzerhof GGA functional. Try calculating the
! effective mass tensor at the Gamma-point using task=25. Repeat this with
! spin-orbit coupling switched on.

tasks
  10

xctype
  20

avec
  5.3435  5.3435  0.0000
  5.3435  0.0000  5.3435
  0.0000  5.3435  5.3435

sppath
  '../../../species/'

atoms
  2                                   : nspecies
  'Ga.in'                             : spfname
  1                                   : natoms; atposl below
  0.0  0.0  0.0
  'As.in'
  1
  0.25  0.25  0.25

ngridk
  4  4  4

vkloff
  0.5  0.5  0.5