asr.c2db.magnetic_anisotropy

Summary

This is the documentation for asr.c2db.magnetic_anisotropy-recipe. This recipe is comprised of a single instruction, namely:

• asr.c2db.magnetic_anisotropy.main()

Run this recipe through the CLI interface

$ asr run asr.c2db.magnetic_anisotropy

or as a python module

$ python -m asr.c2db.magnetic_anisotropy

Detailed description

Magnetic anisotropy.

Steps

asr.c2db.magnetic_anisotropy

asr.c2db.magnetic_anisotropy.main(atoms, calculator={'charge': 0, 'convergence': {'bands': 'CBM+3.0'}, 'kpts': {'density': 12.0, 'gamma': True}, 'mode': {'ecut': 800, 'name': 'pw'}, 'name': 'gpaw', 'nbands': '200%', 'occupations': {'name': 'fermi-dirac', 'width': 0.05}, 'txt': 'gs.txt', 'xc': 'PBE'})

Calculate the magnetic anisotropy.

Uses the magnetic anisotropy to calculate the preferred spin orientation for magnetic (FM/AFM) systems.

Returns

• theta (Polar angle in radians)

• phi (Azimuthal angle in radians)

Parameters

• atoms (ase.atoms.Atoms) –

• calculator (dict) –

Return type

asr.c2db.magnetic_anisotropy.Result

class asr.c2db.magnetic_anisotropy.Result(E_y, phi, spin_axis, E_z, dE_zx, dE_zy, theta, E_x)

Parameters

• E_y (float) –

• phi (float) –

• spin_axis (str) –

• E_z (float) –

• dE_zx (float) –

• dE_zy (float) –

• theta (float) –

• E_x (float) –

property E_x: float

Soc. total energy, x-direction [eV/unit cell]

property E_y: float

Soc. total energy, y-direction [eV/unit cell]

property E_z: float

Soc. total energy, z-direction [eV/unit cell]

property dE_zx: float

Magnetic anisotropy energy between x and z axis [meV/unit cell]

property dE_zy: float

Magnetic anisotropy energy between y and z axis [meV/unit cell]

property phi: float

Easy axis, polar coordinates, phi [radians]

property spin_axis: str

Magnetic easy axis

property theta: float

Easy axis, polar coordinates, theta [radians]