Magnetic ordered structure dependence of magnetic refrigeration efficiency

Ryo Tamura, Shu Tanaka, Takahisa Ohno, Hideaki Kitazawa

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Abstract

We have investigated the relation between magnetic ordered structure and magnetic refrigeration efficiency in the Ising model on a simple cubic lattice using Monte Carlo simulations. The magnetic entropy behaviors indicate that the protocol, which was first proposed in [Tamura et al., Appl. Phys. Lett. 104, 052415 (2014)], can produce the maximum isothermal magnetic entropy change and the maximum adiabatic temperature change in antiferromagnets. Furthermore, the total amount of heat transfer under the proposed protocol reaches a maximum. The relation between measurable physical quantities and magnetic refrigeration efficiency is also discussed.

Original languageEnglish
Article number053908
JournalJournal of Applied Physics
Volume116
Issue number5
DOIs
Publication statusPublished - 2014 Aug 7
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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