# mhz2gauss.m

From Spinach Documentation Wiki

Converts hyperfine couplings from MHz (linear frequency) to Gauss. The Gauss specification may be defined as "the magnetic field at which the electron frequency is equal to the frequency provided".

## Contents

## Syntax

hfc_gauss=mhz2gauss(hfc_mhz,g)

## Arguments

hfc_mhz - an array of values in MHz

g - electron g-factor; if this parameter is skipped, free electron g-factor is used for conversion

## Outputs

hfc_gauss - an array of values in Gauss

## Examples

See examples/esr_liquids and examples/esr_solids directories.

## Notes

The principal advantage of Gauss and mT units for hyperfine coupling is that they make the hyperfine tensor independent of the electron g-tensor. This is very useful in ab initio calculations of hyperfine couplings because g-tensor is a much harder quantity to compute.

## See also

icm2hz.m, hz2icm.m, ang2cgsppm.m, castep2nqi.m, cgsppm2ang.m, eeqq2nqi.m, frac2cart.m, gauss2mhz.m, fwhm2rlx.m, g2freq.m, hartree2joule.m, mt2hz.m

*Version 2.2, authors: Ilya Kuprov*