# eqmag.m

Molar magnetization vector at the thermal equilibrium.

## Syntax

    magn=eqmag(spin_system,parameters)


## Description

Computes the molar magnetization vector at the thermal equilibrium at the temperature specified in inter.temperature and magnetic field specified in sys.magnet (assumed to be along the Z-axis), averaged over system orientations using the spherical grid specified.

## Arguments

    parameters.grid - spherical grid for averaging


## Outputs

    magn - molar magnetization vector [Mx My Mz] in [Na*mu_bohr]


## Examples

See triple_dy_eqmag_field.m and triple_dy_eqmag_temp.m files in examples/giant_spin directory.

## Notes

The use of bas.formalism='zeeman-hilb' is obligatory. Spinach uses NMR convention for the exchange coupling: the exchange term in the Hamiltonian is 2*pi*J*(LxSx+LySy+LzSz) where J is in Hz.