Ejemplo n.º 1
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# set global parameters of project suite
settings(
    pseudo_dir    = './pseudopotentials', # directory with pseudopotentials
    generate_only = 0,                    # only generate input files, T/F
    status_only   = 0,                    # only show run status, T/F
    machine       = 'node16'              # local machine is 16 core workstation
    )



# describe the physical system
T_structure = Structure()             # empty structure
T_structure.read_xyz('./Ge_T_16.xyz') # read in Ge T interstitial structure

T_structure.reset_axes([              # specify cell axes (in Angstrom)
        [ 5.66,  5.66,  0.  ],
        [ 0.  ,  5.66,  5.66],
        [ 5.66,  0.  ,  5.66]
        ])

T_system = PhysicalSystem(            # make the physical system
    structure = T_structure,          # out of the T interstitial structure
    Ge        = 4                     # pseudo-Ge has 4 valence electrons
    )


# specify MP k-point grids for successive relaxations
supercell_kgrids = [(1,1,1),  #   1 k-point
Ejemplo n.º 2
0
#general settings for the project suite
settings(
    pseudo_dir='./pseudopotentials',  # directory with all pseudopotentials
    sleep=3,  # check on runs every 'sleep' seconds
    generate_only=0,  # only make input files
    status_only=0,  # only show status of runs
    machine='node16',  # local machine is 16 core workstation
)

#generate the C20 physical system
# specify the xyz file
structure_file = 'c20.cage.xyz'
# make an empty structure object
structure = Structure()
# read in the xyz file
structure.read_xyz(structure_file)
# place a bounding box around the structure
structure.bounding_box(
    box='cubic',  # cube shaped cell
    scale=1.5  # 50% extra space
)
# make it a gamma point cell
structure.add_kmesh(
    kgrid=(1, 1, 1),  # Monkhorst-Pack grid
    kshift=(0, 0, 0)  # and shift
)
# add electronic information
c20 = PhysicalSystem(
    structure=structure,  # C20 structure
    net_charge=0,  # net charge in units of e
    net_spin=0,  # net spin in units of e-spin
Ejemplo n.º 3
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from project import settings
from project import Structure, PhysicalSystem
from project import generate_pwscf, Job
from project import ProjectManager

# set global parameters of project suite
settings(
    pseudo_dir='./pseudopotentials',  # directory with pseudopotentials
    generate_only=0,  # only generate input files, T/F
    status_only=0,  # only show run status, T/F
    machine='node16'  # local machine is 16 core workstation
)

# describe the physical system
T_structure = Structure()  # empty structure
T_structure.read_xyz('./Ge_T_16.xyz')  # read in Ge T interstitial structure

T_structure.reset_axes([  # specify cell axes (in Angstrom)
    [5.66, 5.66, 0.], [0., 5.66, 5.66], [5.66, 0., 5.66]
])

T_system = PhysicalSystem(  # make the physical system
    structure=T_structure,  # out of the T interstitial structure
    Ge=4  # pseudo-Ge has 4 valence electrons
)

# specify MP k-point grids for successive relaxations
supercell_kgrids = [
    (1, 1, 1),  #   1 k-point
    (2, 2, 2),  #   8 k-points
    (4, 4, 4),  #  64 k-points
Ejemplo n.º 4
0
    pseudo_dir    = './pseudopotentials',# directory with all pseudopotentials
    sleep         = 3,                   # check on runs every 'sleep' seconds
    generate_only = 0,                   # only make input files
    status_only   = 0,                   # only show status of runs
    machine       = 'node16',            # local machine is 16 core workstation
    )



#generate the C20 physical system
# specify the xyz file
structure_file = 'c20.cage.xyz'
# make an empty structure object
structure = Structure()
# read in the xyz file
structure.read_xyz(structure_file)
# place a bounding box around the structure
structure.bounding_box(
    box   = 'cubic',         # cube shaped cell
    scale = 1.5              # 50% extra space
    )
# make it a gamma point cell
structure.add_kmesh(
    kgrid      = (1,1,1),    # Monkhorst-Pack grid
    kshift     = (0,0,0)     # and shift
    )
# add electronic information
c20 = PhysicalSystem(
    structure = structure,   # C20 structure
    net_charge = 0,          # net charge in units of e
    net_spin   = 0,          # net spin in units of e-spin