Effect of magnetic field on performance of ErNi0.9Co 0.1 regenerator in gifford-mcmahon refrigerator

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Abstract

Specific heat of magnetic material ErNi0.9Co0.1 was measured in a temperature interval between 1.5 and 35 K in magnetic fields up to 5 T. This material exhibited a large specific heat suitable for a cryogenic regenerator. The Curie temperature was 6.2 K, which is lower than that of ErNi, 10.5 K. The Gifford-McMahon cycle with an ErNi0.9Co0.1 regenerator was numerically simulated and the results were compared to those for ErNi. The cooling power obtained with ErNi0.9Co0.1 was 1.4 times higher than with ErNi in a zero magnetic field. When a constant magnetic field of 1.0 T was applied to the ErNi0.9Co0.1 regenerator, the cooling power was 1.2 times larger than in a zero magnetic field.

Original languageEnglish
Title of host publicationLOW TEMPERATURE PHYSICS
Subtitle of host publication24th International Conference on Low Temperature Physics - LT24
Pages1577-1578
Number of pages2
DOIs
Publication statusPublished - Dec 1 2006
EventLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States
Duration: Aug 10 2006Oct 17 2006

Publication series

NameAIP Conference Proceedings
Volume850
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
CountryUnited States
CityOrlando, FL
Period8/10/0610/17/06

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Yayama, H. (2006). Effect of magnetic field on performance of ErNi0.9Co 0.1 regenerator in gifford-mcmahon refrigerator. In LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 (pp. 1577-1578). (AIP Conference Proceedings; Vol. 850). https://doi.org/10.1063/1.2355308