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Magnetic intermetallic compounds for cryogenic regenerator

โœ Scribed by R. Li; M. Ogawa; T. Hashimoto

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
567 KB
Volume
30
Category
Article
ISSN
0011-2275

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โœฆ Synopsis

To develop a new regenerator material for a small cryocooler below 15 K, this paper has focussed on magnetic materials which show large entropy effect with magnetic phase transitions, and has discussed several key points in the selection of the magnetic materials. The temperature dependence of specific heat has been investigated for intermetallic compounds of Erl_xDyxNi2 and Er(Nil_xCox)2. Because of magnetic phase transitions the magnetic specific heat anomalies in both magnetic compound systems were found to be extremely large and the compounds can be substituted for lead to act as new cryogenic regenerator materials below 15 K.

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