Investigation of the Magnetic Refrigerant for the Ericsson Magnetic Refrigerator

T. Hashimoto, T. Kuzuhara, K. Matsumoto, M. Sahashi, K. Inomata, A. Tomokiyo, H. Yayama

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

In the temperature range above ∼20 K, the Ericsson magnetic refrigeration cycle has to be adopted instead of the Carnot cycle, because the lattice entropy becomes no longer negligible as compared with the magnetic entropy. Moreover, in this range since the thermal agitation energy ∼kT of spin also increases, the ferromagnetic materials have to be used for the refrigerant to obtain large entropy change enough to refrigerate. However, temperature variation of the magnetic entropy change of ferromagnetic material is not suitable for the Ericsson cycle. In the present paper we will give the answers to the following questions; (1) what kinds of ferromagnets must be used for the refrigerant? (2) what kind of method to compose the refrigerant using those ferromagnets is promising?.

Original languageEnglish
Pages (from-to)1673-1674
Number of pages2
JournalJapanese journal of applied physics
Volume26
Issue numberS3-2
DOIs
Publication statusPublished - Jan 1987

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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    Hashimoto, T., Kuzuhara, T., Matsumoto, K., Sahashi, M., Inomata, K., Tomokiyo, A., & Yayama, H. (1987). Investigation of the Magnetic Refrigerant for the Ericsson Magnetic Refrigerator. Japanese journal of applied physics, 26(S3-2), 1673-1674. https://doi.org/10.7567/JJAPS.26S3.1673