The Effect of the Magnon-Phonon Interaction on the Specific Heat of an Antiferromagnet

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概要

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• The effect of the magnon-phonon interaction on the specific heat of an antiferromagnet is calculated on the basis of a simple model. We treat a Hamiltonian which includes terms of quasi-magnons, phonons and magnon-phonon interaction. The Hamiltonian is diagonalized and two branches representing coupled modes are obtained. The specific heat of the coupled system is calculated. It is shown that for weak interaction the contribution from the magnon-phonon interaction is very small, and for strong interaction it in creases rapidly with decreasing temperature and it gives a large correction to the total specific heat at low temperatures.

• 社団法人日本物理学会の論文
• 1970-05-05

著者

• Kimura Izuru

  Physics Department Fukuoka University Of Education

関連論文

• The Effect of the Magnon-Phonon Interaction on the Specific Heat of an Antiferromagnet
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