phonopy:
  version: 2.17.1
  frequency_unit_conversion_factor: 15.633302
  symmetry_tolerance: 1.00000e-05

physical_unit:
  atomic_mass: "AMU"

space_group:
  type: "Fd-3m"
  number: 227
  Hall_symbol: "F 4d 2 3 -1d"

supercell_matrix:
- [   2,   0,   0 ]
- [   0,   2,   0 ]
- [   0,   0,   2 ]

primitive_cell:
  lattice:
  - [     0.000000000000000,     2.715470500000000,     2.715470500000000 ] # a
  - [     2.715470500000000,     0.000000000000000,     2.715470500000000 ] # b
  - [     2.715470500000000,     2.715470500000000,     0.000000000000000 ] # c
  points:
  - symbol: Si # 1
    coordinates: [  0.000000000000000,  0.000000000000000,  0.000000000000000 ]
    mass: 28.085500
  - symbol: Si # 2
    coordinates: [  0.250000000000000,  0.250000000000000,  0.250000000000000 ]
    mass: 28.085500
  reciprocal_lattice: # without 2pi
  - [    -0.184130153503785,     0.184130153503785,     0.184130153503785 ] # a*
  - [     0.184130153503785,    -0.184130153503785,     0.184130153503785 ] # b*
  - [     0.184130153503785,     0.184130153503785,    -0.184130153503785 ] # c*

unit_cell:
  lattice:
  - [     0.000000000000000,     2.715470500000000,     2.715470500000000 ] # a
  - [     2.715470500000000,     0.000000000000000,     2.715470500000000 ] # b
  - [     2.715470500000000,     2.715470500000000,     0.000000000000000 ] # c
  points:
  - symbol: Si # 1
    coordinates: [  0.000000000000000,  0.000000000000000,  0.000000000000000 ]
    mass: 28.085500
    reduced_to: 1
  - symbol: Si # 2
    coordinates: [  0.250000000000000,  0.250000000000000,  0.250000000000000 ]
    mass: 28.085500
    reduced_to: 2

supercell:
  lattice:
  - [     0.000000000000000,     5.430941000000000,     5.430941000000000 ] # a
  - [     5.430941000000000,     0.000000000000000,     5.430941000000000 ] # b
  - [     5.430941000000000,     5.430941000000000,     0.000000000000000 ] # c
  points:
  - symbol: Si # 1
    coordinates: [  0.000000000000000,  0.000000000000000,  0.000000000000000 ]
    mass: 28.085500
    reduced_to: 1
  - symbol: Si # 2
    coordinates: [  0.500000000000000,  0.000000000000000,  0.000000000000000 ]
    mass: 28.085500
    reduced_to: 1
  - symbol: Si # 3
    coordinates: [  0.000000000000000,  0.500000000000000,  0.000000000000000 ]
    mass: 28.085500
    reduced_to: 1
  - symbol: Si # 4
    coordinates: [  0.500000000000000,  0.500000000000000,  0.000000000000000 ]
    mass: 28.085500
    reduced_to: 1
  - symbol: Si # 5
    coordinates: [  0.000000000000000,  0.000000000000000,  0.500000000000000 ]
    mass: 28.085500
    reduced_to: 1
  - symbol: Si # 6
    coordinates: [  0.500000000000000,  0.000000000000000,  0.500000000000000 ]
    mass: 28.085500
    reduced_to: 1
  - symbol: Si # 7
    coordinates: [  0.000000000000000,  0.500000000000000,  0.500000000000000 ]
    mass: 28.085500
    reduced_to: 1
  - symbol: Si # 8
    coordinates: [  0.500000000000000,  0.500000000000000,  0.500000000000000 ]
    mass: 28.085500
    reduced_to: 1
  - symbol: Si # 9
    coordinates: [  0.125000000000000,  0.125000000000000,  0.125000000000000 ]
    mass: 28.085500
    reduced_to: 9
  - symbol: Si # 10
    coordinates: [  0.625000000000000,  0.125000000000000,  0.125000000000000 ]
    mass: 28.085500
    reduced_to: 9
  - symbol: Si # 11
    coordinates: [  0.125000000000000,  0.625000000000000,  0.125000000000000 ]
    mass: 28.085500
    reduced_to: 9
  - symbol: Si # 12
    coordinates: [  0.625000000000000,  0.625000000000000,  0.125000000000000 ]
    mass: 28.085500
    reduced_to: 9
  - symbol: Si # 13
    coordinates: [  0.125000000000000,  0.125000000000000,  0.625000000000000 ]
    mass: 28.085500
    reduced_to: 9
  - symbol: Si # 14
    coordinates: [  0.625000000000000,  0.125000000000000,  0.625000000000000 ]
    mass: 28.085500
    reduced_to: 9
  - symbol: Si # 15
    coordinates: [  0.125000000000000,  0.625000000000000,  0.625000000000000 ]
    mass: 28.085500
    reduced_to: 9
  - symbol: Si # 16
    coordinates: [  0.625000000000000,  0.625000000000000,  0.625000000000000 ]
    mass: 28.085500
    reduced_to: 9

displacements:
- atom:    1
  displacement:
    [   0.0000000000000000,  0.0070710678118655,  0.0070710678118655 ]

force_constants:
  format: "compact"
  shape: [ 2, 16 ]
  elements:
  - # (1, 1)
    - [    12.070649529333714,     0.000000000000000,     0.000000000000000 ]
    - [     0.000000000000000,    12.070649529333714,    -0.000000000000000 ]
    - [     0.000000000000000,    -0.000000000000000,    12.070649529333714 ]
  - # (1, 2)
    - [     0.493305916776602,    -0.000000000000000,     0.000000000000000 ]
    - [    -0.000000000000000,    -0.686495868383121,    -0.683684717105186 ]
    - [     0.000000000000000,    -0.683684717105186,    -0.686495868383121 ]
  - # (1, 3)
    - [    -0.686495868383121,    -0.000000000000000,    -0.683684717105186 ]
    - [    -0.000000000000000,     0.493305916776602,     0.000000000000000 ]
    - [    -0.683684717105186,     0.000000000000000,    -0.686495868383121 ]
  - # (1, 4)
    - [    -0.686495868383121,     0.683684717105186,    -0.000000000000000 ]
    - [     0.683684717105186,    -0.686495868383121,     0.000000000000000 ]
    - [    -0.000000000000000,     0.000000000000000,     0.493305916776602 ]
  - # (1, 5)
    - [    -0.686495868383121,    -0.683684717105186,    -0.000000000000000 ]
    - [    -0.683684717105186,    -0.686495868383121,     0.000000000000000 ]
    - [    -0.000000000000000,     0.000000000000000,     0.493305916776602 ]
  - # (1, 6)
    - [    -0.686495868383121,    -0.000000000000000,     0.683684717105186 ]
    - [    -0.000000000000000,     0.493305916776602,     0.000000000000000 ]
    - [     0.683684717105186,     0.000000000000000,    -0.686495868383121 ]
  - # (1, 7)
    - [     0.493305916776602,    -0.000000000000000,     0.000000000000000 ]
    - [    -0.000000000000000,    -0.686495868383121,     0.683684717105186 ]
    - [     0.000000000000000,     0.683684717105186,    -0.686495868383121 ]
  - # (1, 8)
    - [     0.070392409728408,    -0.000000000000000,     0.000000000000000 ]
    - [    -0.000000000000000,     0.070392409728408,     0.000000000000000 ]
    - [     0.000000000000000,     0.000000000000000,     0.070392409728408 ]
  - # (1, 9)
    - [    -3.291262736894677,    -2.275537193542261,    -2.275537193542262 ]
    - [    -2.275537193542261,    -3.291262736894677,    -2.275537193542261 ]
    - [    -2.275537193542261,    -2.275537193542261,    -3.291262736894677 ]
  - # (1, 10)
    - [    -3.291262736894677,     2.275537193542262,     2.275537193542261 ]
    - [     2.275537193542261,    -3.291262736894677,    -2.275537193542262 ]
    - [     2.275537193542261,    -2.275537193542262,    -3.291262736894677 ]
  - # (1, 11)
    - [    -3.291262736894677,     2.275537193542261,    -2.275537193542261 ]
    - [     2.275537193542261,    -3.291262736894677,     2.275537193542261 ]
    - [    -2.275537193542261,     2.275537193542261,    -3.291262736894677 ]
  - # (1, 12)
    - [     0.695845162123966,    -0.162819518560178,     0.162819518560178 ]
    - [    -0.162819518560178,     0.695845162123966,     0.162819518560178 ]
    - [     0.162819518560178,     0.162819518560178,     0.695845162123967 ]
  - # (1, 13)
    - [    -3.291262736894677,    -2.275537193542262,     2.275537193542261 ]
    - [    -2.275537193542261,    -3.291262736894677,     2.275537193542261 ]
    - [     2.275537193542261,     2.275537193542261,    -3.291262736894677 ]
  - # (1, 14)
    - [     0.695845162123966,     0.162819518560178,    -0.162819518560178 ]
    - [     0.162819518560178,     0.695845162123966,     0.162819518560178 ]
    - [    -0.162819518560178,     0.162819518560178,     0.695845162123966 ]
  - # (1, 15)
    - [     0.695845162123966,     0.162819518560178,     0.162819518560178 ]
    - [     0.162819518560178,     0.695845162123966,    -0.162819518560178 ]
    - [     0.162819518560178,    -0.162819518560178,     0.695845162123966 ]
  - # (1, 16)
    - [     0.695845162123966,    -0.162819518560178,    -0.162819518560178 ]
    - [    -0.162819518560178,     0.695845162123966,    -0.162819518560178 ]
    - [    -0.162819518560178,    -0.162819518560178,     0.695845162123966 ]
  - # (2, 1)
    - [    -3.291262736894677,    -2.275537193542261,    -2.275537193542261 ]
    - [    -2.275537193542261,    -3.291262736894677,    -2.275537193542261 ]
    - [    -2.275537193542262,    -2.275537193542261,    -3.291262736894677 ]
  - # (2, 2)
    - [    -3.291262736894677,     2.275537193542261,     2.275537193542261 ]
    - [     2.275537193542262,    -3.291262736894677,    -2.275537193542262 ]
    - [     2.275537193542261,    -2.275537193542262,    -3.291262736894677 ]
  - # (2, 3)
    - [    -3.291262736894677,     2.275537193542261,    -2.275537193542261 ]
    - [     2.275537193542261,    -3.291262736894677,     2.275537193542261 ]
    - [    -2.275537193542261,     2.275537193542261,    -3.291262736894677 ]
  - # (2, 4)
    - [     0.695845162123966,    -0.162819518560178,     0.162819518560178 ]
    - [    -0.162819518560178,     0.695845162123966,     0.162819518560178 ]
    - [     0.162819518560178,     0.162819518560178,     0.695845162123967 ]
  - # (2, 5)
    - [    -3.291262736894677,    -2.275537193542261,     2.275537193542261 ]
    - [    -2.275537193542262,    -3.291262736894677,     2.275537193542261 ]
    - [     2.275537193542261,     2.275537193542261,    -3.291262736894677 ]
  - # (2, 6)
    - [     0.695845162123966,     0.162819518560178,    -0.162819518560178 ]
    - [     0.162819518560178,     0.695845162123966,     0.162819518560178 ]
    - [    -0.162819518560178,     0.162819518560178,     0.695845162123966 ]
  - # (2, 7)
    - [     0.695845162123966,     0.162819518560178,     0.162819518560178 ]
    - [     0.162819518560178,     0.695845162123966,    -0.162819518560178 ]
    - [     0.162819518560178,    -0.162819518560178,     0.695845162123966 ]
  - # (2, 8)
    - [     0.695845162123966,    -0.162819518560178,    -0.162819518560178 ]
    - [    -0.162819518560178,     0.695845162123966,    -0.162819518560178 ]
    - [    -0.162819518560178,    -0.162819518560178,     0.695845162123966 ]
  - # (2, 9)
    - [    12.070649529333716,    -0.000000000000000,     0.000000000000001 ]
    - [    -0.000000000000000,    12.070649529333716,     0.000000000000000 ]
    - [     0.000000000000001,     0.000000000000000,    12.070649529333716 ]
  - # (2, 10)
    - [     0.493305916776602,     0.000000000000000,    -0.000000000000000 ]
    - [     0.000000000000000,    -0.686495868383121,    -0.683684717105186 ]
    - [    -0.000000000000000,    -0.683684717105186,    -0.686495868383121 ]
  - # (2, 11)
    - [    -0.686495868383121,     0.000000000000000,    -0.683684717105186 ]
    - [     0.000000000000000,     0.493305916776602,     0.000000000000000 ]
    - [    -0.683684717105186,     0.000000000000000,    -0.686495868383121 ]
  - # (2, 12)
    - [    -0.686495868383121,     0.683684717105186,    -0.000000000000000 ]
    - [     0.683684717105186,    -0.686495868383121,     0.000000000000000 ]
    - [    -0.000000000000000,     0.000000000000000,     0.493305916776602 ]
  - # (2, 13)
    - [    -0.686495868383121,    -0.683684717105186,    -0.000000000000000 ]
    - [    -0.683684717105186,    -0.686495868383121,    -0.000000000000000 ]
    - [    -0.000000000000000,    -0.000000000000000,     0.493305916776602 ]
  - # (2, 14)
    - [    -0.686495868383121,     0.000000000000000,     0.683684717105186 ]
    - [     0.000000000000000,     0.493305916776602,    -0.000000000000000 ]
    - [     0.683684717105186,    -0.000000000000000,    -0.686495868383121 ]
  - # (2, 15)
    - [     0.493305916776602,     0.000000000000000,    -0.000000000000000 ]
    - [     0.000000000000000,    -0.686495868383121,     0.683684717105186 ]
    - [    -0.000000000000000,     0.683684717105186,    -0.686495868383121 ]
  - # (2, 16)
    - [     0.070392409728408,     0.000000000000000,    -0.000000000000000 ]
    - [     0.000000000000000,     0.070392409728408,     0.000000000000000 ]
    - [    -0.000000000000000,     0.000000000000000,     0.070392409728408 ]