kpoints for band structure L-G-X-U K-G
 10
line
reciprocal
  0.50000  0.50000  0.50000   L
  0.00000  0.00000  0.00000   G

  0.00000  0.00000  0.00000   G
  0.50000  0.00000  0.50000   X

  0.50000  0.00000  0.50000   X
  0.62500  0.25000  0.62500   U

  0.37500  0.37500  0.75000   K
  0.00000  0.00000  0.00000   G
