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Specific Heat and Entropy of RNi2 (R: Rare Earth Heavy Metals) in Magnetic Field

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Advances in Cryogenic Engineering Materials

Part of the book series: Advances in Cryogenic Engineering ((ACRE,volume 32))

Abstract

The system RNi2 (R=Dy, Ho and Er) is verified to be promising as magnetic refrigerant in the wide temperature range below 35 K. We prepared these compounds and measured the temperature variation of the specific heat and the magnetization in magnetic field up to 5 T. From these results we determined the total entropy and the magnetic entropy change by a magnetic field. It is made clear that these compounds are applicable to the magnetic refrigerants using an Ericsson-type cooling cycle below 35 K.

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References

  1. T. Numazawa, T. Hashimoto, H. Nakagome, N. Tanji and O. Horigami, The helium magnetic refrigerator II: Liquefaction process and efficiency, in: “Advances in Cryogenic Engineering” vol. 29, Plenum Press, New York (1984), pp. 589–596.

    Google Scholar 

  2. W. P. Pratt, S. S. Rosenblum, W. A. Steyert and J. A. Barcley, A continuous demagnetization refrigerator operating near 2 K and a study of magnetic refrigerants, Cryogenics 17: 689–693 (1977).

    Article  Google Scholar 

  3. W. A. Steyert, Rotating Carnot-cycle magnetic refrigerator for use near 2 K, J. Appl. Phys. 49: 1227–1231 (1978).

    Article  Google Scholar 

  4. A. F. Lacaze, A. A. Lacaze, R. Beranger and G. Bon Mardion, Thermodynamical analysis of a double acting reciprocating magnetic refrigerator, “Proceedings of ICEC”, Butterworths, England (1982).

    Google Scholar 

  5. G. V. Brown, Magnetic heat pumping near room temperature, J. Appl. Phys. 47: 3673–3690 (1976).

    Article  Google Scholar 

  6. W. E. Wallace, “Rare Earth Intermetallics”, Academic Press, Inc., New York and London (1973), pp. 111–128.

    Google Scholar 

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Authors and Affiliations

  1. Department of Physics, College of General Education, Kyushu University, Chuoku, Fukuoka, Japan

    A. Tomokiyo & H. Yayama

  2. Department of Applied Physics, Faculty of Science, Tokyo Institute of Technology, Ohokayama, Meguroku, Tokyo, Japan

    H. Wakabayashi, T. Kuzuhara & T. Hashimoto

  3. Toshiba Research and Development Center, Saiwaiku, Kawasaki, Kanagawa, Japan

    M. Sahashi & K. Inomata

Authors
  1. A. Tomokiyo
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  2. H. Yayama
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  3. H. Wakabayashi
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  4. T. Kuzuhara
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  5. T. Hashimoto
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  6. M. Sahashi
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  7. K. Inomata
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Editor information

Editors and Affiliations

  1. U.S. Department of Commerce, National Bureau of Standards, Boulder, Colorado, USA

    R. P. Reed  & A. F. Clark  & 

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© 1986 Plenum Press, New York

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Tomokiyo, A. et al. (1986). Specific Heat and Entropy of RNi2 (R: Rare Earth Heavy Metals) in Magnetic Field. In: Reed, R.P., Clark, A.F. (eds) Advances in Cryogenic Engineering Materials . Advances in Cryogenic Engineering Materials , vol 32. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-9871-4_35

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  • DOI: https://doi.org/10.1007/978-1-4613-9871-4_35

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4613-9873-8

  • Online ISBN: 978-1-4613-9871-4

  • eBook Packages: Springer Book Archive

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