grogupy._core.interaction_energy

grogupy._core.interaction_energy(Vu1_1: ndarray[Any, dtype[_ScalarType_co]], Vu1_2: ndarray[Any, dtype[_ScalarType_co]], Gij: ndarray[Any, dtype[_ScalarType_co]], Gji: ndarray[Any, dtype[_ScalarType_co]], weights: ndarray[Any, dtype[_ScalarType_co]]) → float

The interaction energy variation upon rotations.

It can be used to calculate the interaction energy between two magnetic entities or to calculate some of the elements of the anisotropy tensor.

Parameters

Vu1_1NDArray

First order perturbation of a rotation to one direction

Vu1_2NDArray

First order perturbation of a rotation to another direction

GijNDArray

First Green’s function slice between the magnetic entities

GjiNDArray

Second Green’s function slice between the magnetic entities

weightsNDArray

The weights from the energy contour integral

Returns

float

The interaction energy variation