File: elk.in

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! Band structure of graphene. Observe the massless Dirac-like dispersion in the
! density of states.

tasks
  0
  10

nempty
  8

wplot
  200  150  1
 -0.5  0.5

plot1d
  4  100
  0.333333333   0.333333333   0.0
  0.0           0.0           0.0
  0.0           0.5           0.0
  0.333333333   0.333333333   0.0

! very high number of k-points required to resolve the linear dispersion
ngridk
  30  30  1

avec
 -0.5   0.866025403784   0.0
 -1.0   0.0              0.0
  0.0   0.0              3.2265697

scale
  4.64890

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

atoms
  1                                     : nspecies
  'C.in'                                : spfname
  2                                     : natoms; atposl below
  0.0  0.0  0.0
  0.333333333333   0.333333333333   0.0