TY - JOUR
T1 - Specific heat of ErNi in magnetic fields and its performance as regenerator material in Gifford-McMahon refrigerator at cryogenic temperatures
AU - Yayama, Hideki
AU - Hatta, Yoshiro
AU - Tomokiyo, Akihisa
AU - Okamura, Masami
AU - Tokai, Yoichi
AU - Takahashi, Akiko
AU - Hashimoto, Takasu
PY - 1996/1/1
Y1 - 1996/1/1
N2 - Specific heat of the rare earth compound ErNi is measured in magnetic fields up to 5 T in the temperature range 4.2 to 35 K. The specific heat under applied magnetic field of 1 T is larger than that of Er3Ni below 16 K. The numerical simulation of a Gifford-McMahon cycle shows that the refrigeration capacity using an ErNi regenerator is larger than that using one of Er3Ni or lead. It is shown for the first time that the refrigeration capacity can be increased by application of a weak magnetic field to the ErNi regenerator.
AB - Specific heat of the rare earth compound ErNi is measured in magnetic fields up to 5 T in the temperature range 4.2 to 35 K. The specific heat under applied magnetic field of 1 T is larger than that of Er3Ni below 16 K. The numerical simulation of a Gifford-McMahon cycle shows that the refrigeration capacity using an ErNi regenerator is larger than that using one of Er3Ni or lead. It is shown for the first time that the refrigeration capacity can be increased by application of a weak magnetic field to the ErNi regenerator.
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U2 - 10.1143/jjap.35.5545
DO - 10.1143/jjap.35.5545
M3 - Article
AN - SCOPUS:0030262065
VL - 35
SP - 5545
EP - 5549
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 10
ER -