mev2hz.m

Converts meV energy units used in solid state physics and phonon spectroscopy into Hz units preferred in magnetic resonance. The conversion is nu = E/h with CODATA values of the elementary charge and the Planck constant. Arrays of any dimensions are supported.

Syntax

    hz=mev2hz(mev)

Parameters

    mev   - an array of values in milli-electronvolts

Outputs

    hz    - an array of values in Hz

Examples

A phonon mode reported at 82 meV by an inelastic neutron scattering experiment, declared as a seven-level vibrational mode:

    % Phonon frequency in Hz
    frq=mev2hz(82);

    % Phonon mode with seven levels
    sys.isotopes={'E','V7'};
    inter.modes.frqs={[] frq};

Notes

1. Derivatives of spin interactions with respect to atomic displacements should be converted into Hz before they are passed to cart2mode.m.

See also

kelvin2hz.m, icm2hz.m, hz2icm.m, cart2mode.m, hartree2joule.m, Kernel utilities

Version 2.12, authors: Ilya Kuprov