Precise magnetization measurements down to 500 mK using a miniature He cryostat and a closed-cycle He gas handling system installed in a SQUID magnetometer without continuous-cooling functionality

Shimamura, Kazutoshi*; Wajima, Hiroki*; Makino, Hayato*; Abe, Satoshi*; Haga, Yoshinori ; Sato, Yoshiaki*; Kawae, Tatsuya*; Yoshida, Yasuo*

We have conducted precise magnetization measurements down to 500 mK using a commercial magnetometer. The gas handling system contains two sorption pumps filled with granular charcoals. He gas is pressurized up to ambient pressure for liquification at 3 K and the vapor is pumped for cooling. We demonstrate the performance of the system by observing the Meissner effect of aluminum below the superconducting transition temperature.

Language	:	English
Journal	:	Japanese Journal of Applied Physics
Volume	:	61
Number	:	5
Pages	:	p.056502_1 - 056502_7
Publication Year/Month	:	2022/05
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Paper URL	:	https://doi.org/10.35848/1347-4065/ac5bb0
DOI for research data	:
Keywords	:	magnetometer; low temperature
Research Facility	:	第4研究棟
Press Release	:
Article of JAEA R&D Review	:
Cooperating Institute	:	金沢大学

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Registration No. : AA20210860
JAEA Abstracts No. : 50000561
Paper Submission No. : 25313

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