bulk_dispersion{ }
Calling sequence
classical{ bulk_dispersion{ } }
Properties
usage:
items: maximum 1
Dependencies
The global{ magnetic_field{ } } is must not be specified in the input file.
Functionality
This group allows calculating bulk band structures of the materials at specific positions in the simulation domain within 1-band approximations or
Example
classical{
bulk_dispersion{
Gamma{}
KP8{}
KP30{}
path{
name = "name_1"
...
}
path{
name = "name_2"
...
}
full{
name = "name_3"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
crystal_zb{...}
}
Nested keywords
Gamma{ }
Calling sequence
classical{ bulk_dispersion{ Gamma{ } } }
Properties
usage:
items: maximum 1
Dependencies
At least one of Gamma{ }, HH{ }, LH{ }, SO{ }, KP6{ }, KP8{ }, KP14{ }, or KP30{ } is required if global{ crystal_zb{ } } is already present.
At least one of Gamma{ }, HH{ }, LH{ }, SO{ }, KP6{ }, or KP8{ } is required if global{ crystal_wz{ } } is already present.
Functionality
When this group is defined, the bulk electronic band structure is computed within 1-band parabolic model using effective mass tensor for the conduction band at
Example
classical{
bulk_dispersion{
Gamma{}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
HH{ }
Calling sequence
classical{ bulk_dispersion{ HH{ } } }
Properties
usage:
items: maximum 1
Dependencies
At least one of Gamma{ }, HH{ }, LH{ }, SO{ }, KP6{ }, KP8{ }, KP14{ }, or KP30{ } is required if global{ crystal_zb{ } } is already present.
At least one of Gamma{ }, HH{ }, LH{ }, SO{ }, KP6{ }, or KP8{ } is required if global{ crystal_wz{ } } is already present.
Functionality
When this group is defined, the bulk electronic band structure is computed within 1-band parabolic model using effective mass tensor for the heavy-hole valence band.
Example
classical{
bulk_dispersion{
HH{}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
LH{ }
Calling sequence
classical{ bulk_dispersion{ LH{ } } }
Properties
usage:
items: maximum 1
Dependencies
At least one of Gamma{ }, HH{ }, LH{ }, SO{ }, KP6{ }, KP8{ }, KP14{ }, or KP30{ } is required if global{ crystal_zb{ } } is already present.
At least one of Gamma{ }, HH{ }, LH{ }, SO{ }, KP6{ }, or KP8{ } is required if global{ crystal_wz{ } } is already present.
Functionality
When this group is defined, the bulk electronic band structure is computed within 1-band parabolic model using effective mass tensor for the light-hole valence band.
Example
classical{
bulk_dispersion{
LH{}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
SO{ }
Calling sequence
classical{ bulk_dispersion{ SO{ } } }
Properties
usage:
items: maximum 1
Dependencies
At least one of Gamma{ }, HH{ }, LH{ }, SO{ }, KP6{ }, KP8{ }, KP14{ }, or KP30{ } is required if global{ crystal_zb{ } } is already present.
At least one of Gamma{ }, HH{ }, LH{ }, SO{ }, KP6{ }, or KP8{ } is required if global{ crystal_wz{ } } is already present.
Functionality
When this group is defined, the bulk electronic band structure is computed within 1-band parabolic model using effective mass tensor for the split-off valence band.
Example
classical{
bulk_dispersion{
SO{}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
KP6{ }
Calling sequence
classical{ bulk_dispersion{ KP6{ } } }
Properties
usage:
items: maximum 1
Dependencies
At least one of Gamma{ }, HH{ }, LH{ }, SO{ }, KP6{ }, KP8{ }, KP14{ }, or KP30{ } is required if global{ crystal_zb{ } } is already present.
At least one of Gamma{ }, HH{ }, LH{ }, SO{ }, KP6{ }, or KP8{ } is required if global{ crystal_wz{ } } is already present.
Functionality
When this group is defined, 6-band
Example
classical{
bulk_dispersion{
KP6{}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
KP6{ use_Luttinger_parameters }
Calling sequence
classical{ bulk_dispersion{ KP6{ use_Luttinger_parameters } } }
Properties
usage:
type: choice
values:
yes
orno
default:
no
Dependencies
KP6{ use_Luttinger_parameters } and KP6{ approximate_kappa } are not allowed if global{ crystal_wz{ } } is already present.
Functionality
By default the solver uses the DKK (Dresselhaus-Kip-Kittel) parameters (L, M, N).
If enabled then it uses Luttinger parameters (
Example
classical{
bulk_dispersion{
KP6{
use_Luttinger_parameters = yes
}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
crystal_zb{...}
}
KP6{ approximate_kappa }
Calling sequence
classical{ bulk_dispersion{ KP6{ approximate_kappa } } }
Properties
usage:
type: choice
values:
yes
orno
default:
no
Dependencies
KP6{ use_Luttinger_parameters } and KP6{ approximate_kappa } are not allowed if global{ crystal_wz{ } } is already present.
Functionality
By default the
Example
classical{
bulk_dispersion{
KP6{
approximate_kappa = yes
}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
crystal_zb{...}
}
KP8{ }
Calling sequence
classical{ bulk_dispersion{ KP8{ } } }
Properties
usage:
items: maximum 1
Dependencies
At least one of Gamma{ }, HH{ }, LH{ }, SO{ }, KP6{ }, KP8{ }, KP14{ }, or KP30{ } is required if global{ crystal_zb{ } } is already present.
At least one of Gamma{ }, HH{ }, LH{ }, SO{ }, KP6{ }, or KP8{ } is required if global{ crystal_wz{ } } is already present.
Functionality
When this group is defined, 8-band
Example
classical{
bulk_dispersion{
KP8{}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
KP8{ use_Luttinger_parameters }
Calling sequence
classical{ bulk_dispersion{ KP8{ use_Luttinger_parameters } } }
Properties
usage:
type: choice
values:
yes
orno
default:
no
Dependencies
KP6{ use_Luttinger_parameters } and KP6{ approximate_kappa } is not allowed if global{ crystal_wz{ } } is already present.
Functionality
By default the solver uses the DKK (Dresselhaus-Kip-Kittel) parameters (L, M, N). If enabled then it uses Luttinger parameters (
Example
classical{
bulk_dispersion{
KP8{
use_Luttinger_parameters = yes
}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
crystal_zb{...}
}
KP8{ from_6band_parameters }
Calling sequence
classical{ bulk_dispersion{ KP8{ from_6band_parameters } } }
Properties
usage:
type: choice
values:
yes
orno
default:
no
Functionality
By default the 8-band
Example
classical{
bulk_dispersion{
KP8{
from_6band_parameters = yes
}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
crystal_zb{...}
}
KP8{ evaluate_S }
Calling sequence
classical{ bulk_dispersion{ KP8{ evaluate_S } } }
Properties
usage:
type: choice
values:
yes
orno
default:
no
Functionality
By default
Example
classical{
bulk_dispersion{
KP8{
evaluate_S = yes
}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
crystal_zb{...}
}
KP8{ rescale_S_to }
Calling sequence
classical{ bulk_dispersion{ KP8{ rescale_S_to } } }
Properties for Zincblende:
- usage:
Properties for Wurtzite:
- usage:
Functionality
Sets
Sets
Examples
classical{
bulk_dispersion{
KP8{
rescale_S_to = 1.0
}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
crystal_zb{...}
}
classical{
bulk_dispersion{
KP8{
rescale_S_to = [ 1.0, 1.0 ]
}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
crystal_wz{...}
}
KP8{ approximate_kappa }
Calling sequence
classical{ bulk_dispersion{ KP8{ approximate_kappa } } }
Properties
usage:
type: choice
values:
yes
orno
default:
no
Dependencies
KP6{ use_Luttinger_parameters } and KP6{ approximate_kappa } is not allowed if global{ crystal_wz{ } } is already present.
Functionality
By default, the
Example
classical{
bulk_dispersion{
KP8{
approximate_kappa = yes
}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
crystal_zb{...}
}
KP14{ }
Calling sequence
classical{ bulk_dispersion{ KP14{ } } }
Properties
usage:
items: maximum 1
Dependencies
At least one of Gamma{ }, HH{ }, LH{ }, SO{ }, KP6{ }, KP8{ }, KP14{ }, or KP30{ } is required if global{ crystal_zb{ } } is already present.
KP14{ } and KP30{ } is not allowed if global{ crystal_wz{ } } is already present.
Functionality
When this group is defined, 30-band
Example
classical{
bulk_dispersion{
KP14{}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
crystal_zb{...}
}
KP14{ use_Luttinger_parameters }
Calling sequence
classical{ bulk_dispersion{ KP14{ use_Luttinger_parameters } } }
Properties
usage:
type: choice
values:
yes
orno
default:
no
Functionality
By default the solver uses the DKK (Dresselhaus-Kip-Kittel) parameters (L, M, N). If enabled then it uses Luttinger parameters (
Example
classical{
bulk_dispersion{
KP14{
use_Luttinger_parameters = yes
}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
crystal_zb{...}
}
KP14{ from_6band_parameters }
Calling sequence
classical{ bulk_dispersion{ KP14{ from_6band_parameters } } }
Properties
usage:
type: choice
values:
yes
orno
default:
no
Functionality
By default the 14-band
Example
classical{
bulk_dispersion{
KP14{
from_6band_parameters = yes
}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
crystal_zb{...}
}
KP14{ evaluate_S }
Calling sequence
classical{ bulk_dispersion{ KP14{ evaluate_S } } }
Properties
usage:
type: choice
values:
yes
orno
default:
no
Functionality
By default
Example
classical{
bulk_dispersion{
KP14{
evaluate_S = yes
}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
crystal_zb{...}
}
KP30{ }
Calling sequence
classical{ bulk_dispersion{ KP30{ } } }
Properties
usage:
items: maximum 1
Dependencies
At least one of Gamma{ }, HH{ }, LH{ }, SO{ }, KP6{ }, KP8{ }, KP14{ }, or KP30{ } is required if global{ crystal_zb{ } } is already present.
KP14{ } and KP30{ } is not allowed if global{ crystal_wz{ } } is already present.
Functionality
When this group is defined, 30-band
Example
classical{
bulk_dispersion{
KP30{}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
crystal_zb{...}
}
full{ }
Calling sequence
classical{ bulk_dispersion{ full{ } } }
Properties
usage:
items: no constraints
Dependencies
Functionality
Calculates bulk
Example
classical{
bulk_dispersion{
KP8{}
full{
name = "name_1"
...
}
full{
name = "name_2"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
full{ name }
Calling sequence
classical{ bulk_dispersion{ full{ name } } }
Properties
usage:
type: character string
Functionality
Name of the dispersion which also defines the names of the output files.
Example
classical{
bulk_dispersion{
KP8{}
full{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
full{ position{ } }
Calling sequence
classical{ bulk_dispersion{ full{ position{ } } } }
Properties
usage:
items: exactly 1
Functionality
Specifies the point (x,y,z) in the simulation domain, where the dispersion has to be calculated.
Example
classical{
bulk_dispersion{
KP8{}
full{
name = "name"
position{...}
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
full{ position{ x } }
Calling sequence
classical{ bulk_dispersion{ full{ position{ x } } } }
Properties
usage:
type: real number
values: no constraints
default:
unit:
Functionality
Example
classical{
bulk_dispersion{
KP8{}
full{
name = "name"
position{
x = 10.5
}
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
simulate1D{}
}
full{ position{ y } }
Calling sequence
classical{ bulk_dispersion{ full{ position{ y } } } }
Properties
usage:
type: real number
values: no constraints
default:
unit:
Dependencies
full{ position{ y } } is required if any global{ simulate1D{ } } or global{ simulate2D{ } } is specified in the input file.
full{ position{ y } } is not allowed if global{ simulate1D{ } } is specified in the input file.
Functionality
Example
classical{
bulk_dispersion{
KP8{}
full{
name = "name"
position{
x = 10.5
y = 35.0
}
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
simulate2D{}
}
full{ position{ z } }
Calling sequence
classical{ bulk_dispersion{ full{ position{ z } } } }
Properties
usage:
type: real number
values: no constraints
default:
unit:
usage:
Functionality
Example
classical{
bulk_dispersion{
KP8{}
full{
name = "name"
position{
x = 10.5
y = 35.0
z = 12.3
}
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
simulate3D{}
}
full{ shift_holes_to_zero }
Calling sequence
classical{ bulk_dispersion{ full{ shift_holes_to_zero } } }
Properties
usage:
type: choice
values:
yes
orno
default:
no
Functionality
If enabled shifts the whole dispersion, so that the energy for the Gamma point for the highest hole band is equal to 0.0 (eV)
.
Example
classical{
bulk_dispersion{
KP8{}
full{
shift_holes_to_zero = yes
name = "name"
position{...}
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
full{ kxgrid{ } }
Calling sequence
classical{ bulk_dispersion{ full{ kxgrid{ } } } }
Properties
usage:
items: no constraints
Functionality
Specifies a grid along
Example
classical{
bulk_dispersion{
KP8{}
full{
shift_holes_to_zero = yes
name = "name"
position{...}
kxgrid{...}
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
full{ kxgrid{ line{ } } }
Calling sequence
classical{ bulk_dispersion{ full{ kxgrid{ line{ } } } } }
Properties
usage:
items: minimum 2
Functionality
Setting options defining the grid in k-space.
Example
classical{
bulk_dispersion{
KP8{}
full{
shift_holes_to_zero = yes
name = "name"
position{...}
kxgrid{
line{...}
line{...}
line{...}
}
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
full{ kxgrid{ line{ pos } } }
Calling sequence
classical{ bulk_dispersion{ full{ kxgrid{ line{ pos } } } } }
Properties
usage:
type: real number
values: no constraints
unit:
Functionality
Position of defined k-grid spacing along kx direction.
Example
classical{
bulk_dispersion{
KP8{}
full{
shift_holes_to_zero = yes
name = "name"
position{...}
kxgrid{
line{ pos =-1.0 spacing = 0.2 }
line{ pos = 0.0 spacing = 0.2 }
line{ pos = 1.0 spacing = 0.2 }
}
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
full{ kxgrid{ line{ spacing } } }
Calling sequence
classical{ bulk_dispersion{ full{ kxgrid{ line{ spacing } } } } }
Properties
usage:
type: real number
values:
[1e-6, ...)
unit:
Functionality
k-grid spacing at defined positions
Example
classical{
bulk_dispersion{
KP8{}
full{
shift_holes_to_zero = yes
name = "name"
position{...}
kxgrid{
line{ pos =-1.0 spacing = 0.2 }
line{ pos = 0.0 spacing = 0.2 }
line{ pos = 1.0 spacing = 0.2 }
}
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
full{ kygrid{ } }
Calling sequence
classical{ bulk_dispersion{ full{ kygrid{ } } } }
Properties
usage:
items: no constraints
Functionality
Specifies a grid along
Example
classical{
bulk_dispersion{
KP8{}
full{
shift_holes_to_zero = yes
name = "name"
position{...}
kxgrid{...}
kygrid{
line{ pos =-1.0 spacing = 0.2 }
line{ pos = 0.0 spacing = 0.2 }
line{ pos = 1.0 spacing = 0.2 }
}
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
full{ kzgrid{ } }
Calling sequence
classical{ bulk_dispersion{ full{ kzgrid{ } } } }
Properties
usage:
items: no constraints
Functionality
Specifies a grid along
Example
classical{
bulk_dispersion{
KP8{}
full{
shift_holes_to_zero = yes
name = "name"
position{...}
kxgrid{...}
kygrid{...}
kzgrid{
line{ pos =-1.0 spacing = 0.2 }
line{ pos = 0.0 spacing = 0.2 }
line{ pos = 1.0 spacing = 0.2 }
}
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
simulate3D{}
}
path{ }
Calling sequence
classical{ bulk_dispersion{ path{ } } }
Properties
usage:
items: no constraints
Dependencies
Functionality
Calculate bulk
Example
classical{
bulk_dispersion{
KP8{}
path{
name = "name_1"
spacing = 0.2
...
}
path{
name = "name_2"
num_points = 10
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
path{ name }
Calling sequence
classical{ bulk_dispersion{ path{ name } } }
Properties
usage:
type: character string
Dependencies
name of the dispersions which also defines the names of the output files.
Example
classical{
bulk_dispersion{
KP8{}
path{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
path{ position{ } }
Calling sequence
classical{ bulk_dispersion{ path{ position{ } } } }
Properties
usage:
items: exactly 1
Functionality
Specifies the point (x,y,z) in the simulation domain, where the dispersion has to be calculated.
Example
classical{
bulk_dispersion{
KP8{}
path{
name = "name"
position{ }
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
path{ position{ x } }
Calling sequence
classical{ bulk_dispersion{ path{ position{ x } } } }
Properties
usage:
type: real number
values: no constraints
default:
unit:
Functionality
Example
classical{
bulk_dispersion{
KP8{}
path{
name = "name"
position{
x = 10.5
}
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
simulate1D{}
}
path{ position{ y } }
Calling sequence
classical{ bulk_dispersion{ path{ position{ y } } } }
Properties
usage:
type: real number
values: no constraints
default:
unit:
Dependencies
path{ position{ y } } is required if any global{ simulate1D{ } } or global{ simulate2D{ } } is specified in the input file.
path{ position{ y } } is not allowed if global{ simulate1D{ } } is specified in the input file.
Functionality
Example
classical{
bulk_dispersion{
KP8{}
path{
name = "name"
position{
x = 10.5
y = 35.0
}
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
simulate2D{}
}
path{ position{ z } }
Calling sequence
classical{ bulk_dispersion{ path{ position{ z } } } }
Properties
usage:
type: real number
values: no constraints
default:
unit:
usage:
Functionality
Example
classical{
bulk_dispersion{
KP8{}
path{
name = "name"
position{
x = 10.5
y = 35.0
z = 12.3
}
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
simulate3D{}
}
path{ shift_holes_to_zero }
Calling sequence
classical{ bulk_dispersion{ path{ shift_holes_to_zero } } }
Properties
usage:
type: choice
values:
yes
orno
default:
no
Functionality
If enabled shifts the whole dispersion, so that the energy for the Gamma point for the highest hole band is equal to 0.0 (eV)
.
Example
classical{
bulk_dispersion{
KP8{}
path{
shift_holes_to_zero = yes
name = "name"
position{...}
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
path{ point{ } }
Calling sequence
classical{ bulk_dispersion{ path{ point{ } } } }
Properties
usage:
items: minimum 2
Functionality
Specifies points in the path through k-space. At least two k points have to be defined. Line between two such points is called segment.
Example
classical{
bulk_dispersion{
KP8{}
path{
name = "name"
position{...}
point{...}
point{...}
point{...}
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
path{ point{ k } }
Calling sequence
classical{ bulk_dispersion{ path{ point{ k } } } }
Properties
usage:
type: vector of 3 real numbers:
values: no constraints
default:
, ,unit:
Functionality
k-point represented by vector
Example
classical{
bulk_dispersion{
KP8{}
path{
name = "name"
position{...}
point{ k = [-0.1,-0.1,-0.1 ] }
point{ k = [ 0.0, 0.0, 0.0 ] }
point{ k = [ 0.1, 0.0, 0.0 ] }
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
path{ spacing }
Calling sequence
classical{ bulk_dispersion{ path{ spacing } } }
Properties
usage:
type: real number
values:
[1e-6, ...)
unit:
Dependencies
Exactly one of path{ spacing } or path{ num_points } required.
Functionality
It specifies approximate spacing for intermediate points in the path segments.
Example
classical{
bulk_dispersion{
KP8{}
path{
name = "name"
position{...}
point{ k = [-0.1,-0.1,-0.1 ] }
point{ k = [ 0.0, 0.0, 0.0 ] }
point{ k = [ 0.1, 0.0, 0.0 ] }
spacing = 0.2
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
path{ num_points }
Calling sequence
classical{ bulk_dispersion{ path{ num_points } } }
Properties
usage:
type: integer
values:
Dependencies
Exactly one of path{ spacing } or path{ num_points } required.
Functionality
It specifies number of points (intermediate + two corner-points) for each single path segment.
Example
classical{
bulk_dispersion{
KP8{}
path{
name = "name"
position{...}
point{ k = [-0.1,-0.1,-0.1 ] }
point{ k = [ 0.0, 0.0, 0.0 ] }
point{ k = [ 0.1, 0.0, 0.0 ] }
num_points = 20
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
lines{ }
Calling sequence
classical{ bulk_dispersion{ lines{ } } }
Properties
usage:
items: no constraints
Dependencies
Functionality
Calculates dispersions along some predefined paths of high symmetry in k-space, e.g. [100], [110], [111] and their equivalents (13 in total).
Example
classical{
bulk_dispersion{
KP8{}
lines{
name = "name_1"
...
}
lines{
name = "name_2"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
lines{ name }
Calling sequence
classical{ bulk_dispersion{ lines{ name } } }
Properties
usage:
type: character string
Dependencies
Name of the dispersions which also defines the names of the output files.
Example
classical{
bulk_dispersion{
KP8{}
lines{
name = "name"
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
lines{ position{ } }
Calling sequence
classical{ bulk_dispersion{ lines{ position{ } } } }
Properties
usage:
items: exactly 1
Functionality
Specifies the point (x,y,z) in the simulation domain, where the dispersion has to be calculated.
Example
classical{
bulk_dispersion{
KP8{}
lines{
name = "name"
position{ }
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
lines{ position{ x } }
Calling sequence
classical{ bulk_dispersion{ lines{ position{ x } } } }
Properties
usage:
type: real number
values: no constraints
default:
unit:
Functionality
Example
classical{
bulk_dispersion{
KP8{}
lines{
name = "name"
position{
x = 10.5
}
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
simulate1D{}
}
lines{ position{ y } }
Calling sequence
classical{ bulk_dispersion{ lines{ position{ y } } } }
Properties
usage:
type: real number
values: no constraints
default:
unit:
Dependencies
lines{ position{ y } } is required if any global{ simulate1D{ } } or global{ simulate2D{ } } is specified in the input file.
lines{ position{ y } } is not allowed if global{ simulate1D{ } } is specified in the input file.
Functionality
Example
classical{
bulk_dispersion{
KP8{}
lines{
name = "name"
position{
x = 10.5
y = 35.0
}
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
simulate2D{}
}
lines{ position{ z } }
Calling sequence
classical{ bulk_dispersion{ lines{ position{ z } } } }
Properties
usage:
type: real number
values: no constraints
default:
unit:
usage:
Functionality
Example
classical{
bulk_dispersion{
KP8{}
lines{
name = "name"
position{
x = 10.5
y = 35.0
z = 12.3
}
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
global{
...
simulate3D{}
}
lines{ shift_holes_to_zero }
Calling sequence
classical{ bulk_dispersion{ lines{ shift_holes_to_zero } } }
Properties
usage:
type: choice
values:
yes
orno
default:
no
Functionality
If enabled shifts the whole dispersion, so that the energy for the Gamma point for the highest hole band is equal to 0.0 (eV)
.
Example
classical{
bulk_dispersion{
KP8{}
lines{
shift_holes_to_zero = yes
name = "name"
position{...}
...
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
lines{ k_max }
Calling sequence
classical{ bulk_dispersion{ lines{ k_max } } }
Properties
usage:
type: real number
values:
[1e-6, ...)
unit:
Functionality
Specifies a maximum absolute value (radius) for the k-vector in
Example
classical{
bulk_dispersion{
KP8{}
lines{
name = "name"
position{...}
k_max = 1.0
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
lines{ spacing }
Calling sequence
classical{ bulk_dispersion{ lines{ spacing } } }
Properties
usage:
type: real number
values:
[1e-6, ...)
unit:
Functionality
Specifies approximate spacing for intermediate points in the path segments in
Example
classical{
bulk_dispersion{
KP8{}
lines{
name = "name"
position{...}
k_max = 1.0
spacing = 0.2
}
output_bulk_dispersions{}
}
Gamma{}
HH{}
}
output_bulk_dispersions{ }
Calling sequence
classical{ bulk_dispersion{ output_bulk_dispersions{ } } }
Properties
usage:
items: maximum 1
Dependencies
At least one of output_bulk_dispersions{ }, output_masses{ }, or output_inverse_masses{ } is required.
Functionality
Outputs all defined bulk
Example
classical{
bulk_dispersion{
output_bulk_dispersions{}
KP8{}
path{...}
}
Gamma{}
HH{}
}
output_masses{ }
Calling sequence
classical{ bulk_dispersion{ output_masses{ } } }
Properties
usage:
items: maximum 1
Dependencies
At least one of output_bulk_dispersions{ }, output_masses{ }, or output_inverse_masses{ } is required.
Functionality
Outputs effective masses calculated from the dispersions.
Example
classical{
bulk_dispersion{
output_masses{}
KP8{}
path{...}
}
Gamma{}
HH{}
}
output_inverse_masses{ }
Calling sequence
classical{ bulk_dispersion{ output_inverse_masses{ } } }
Properties
usage:
items: maximum 1
Dependencies
At least one of output_bulk_dispersions{ }, output_masses{ }, or output_inverse_masses{ } is required.
Functionality
Outputs inverse of effective masses calculated from the dispersions.
Example
classical{
bulk_dispersion{
output_inverse_masses{}
KP8{}
path{...}
}
Gamma{}
HH{}
}
output_k_vectors{ }
Calling sequence
classical{ bulk_dispersion{ output_k_vectors{ } } }
Properties
usage:
items: maximum 1
Functionality
Outputs k-vectors for which the dispersions are computed.
Example
classical{
bulk_dispersion{
output_k_vectors{}
KP8{}
path{...}
}
Gamma{}
HH{}
}