Temperature Dependence of Short-Wavelength Magnon Frequencies: Relation to Heat Capacity

1 March 1970

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 1 (5), 2359-2361
https://doi.org/10.1103/physrevb.1.2359

Abstract

A relation between the temperature dependence of the energies of short-wavelength magnons and the heat capacity is presented. This relation, which has no adjustable parameters, is in perfect agreement with all available data for

T ≲ 0.7 T_{N}

. For Ni

F_{2}

, agreement is up to

T_{N}

. The relation can be used to determine the magnon contributions to the heat capacity of magnetic solids.

Keywords

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