Microscopic study on magnetocaloric and electrocaloric effects near the critical point

Hitoshi Honmi, Yoichiro Hashizume, Takashi Nakajima, Soichiro Okamura

研究成果: Article査読

2 被引用数 (Scopus)

抄録

Adiabatic temperature changes of magnetocaloric/electrocaloric effects are analytically investigated. The analytical studies are based on the microscopic statistical models such as Husimi-Temperley model and Slater model. As a result, we show the characteristic scales of the adiabatic processes correspond to microscopic parameters, namely exchange couplings and Slater energy. The scaled parameter dependence become stronger near the critical point. Furthermore, using a general Hamiltonian method, we clarify the adiabatic temperature changes depend on the relative ratio of characteristic scales. The present study may propose a useful aspect for applications.

本文言語English
ページ(範囲)126-135
ページ数10
ジャーナルPhysica A: Statistical Mechanics and its Applications
433
DOI
出版ステータスPublished - 2015 9 1

ASJC Scopus subject areas

  • Statistics and Probability
  • Condensed Matter Physics

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