Developments of the Yb-Based Magnetic Refrigerants for Cooling Down below 1 K

Shimura Yasuyuki, Tokiwa Yoshifumi

doi:10.11316/butsuri.78.8_461

Bibliographic Information

Other Title

イッテルビウム化合物を用いた1K以下の極低温生成のための磁気冷凍材料の開発

Abstract

<p>Low temperatures below 1 K are much more easily achieved by magnetic refrigeration because of the simple construction, compared to the mainstream ³He–⁴He dilution refrigeration technique. Ytterbium (Yb)-based compounds with a giant specific heat around 0.1 K have attracted much attention as magnetic refrigerants. We measured thermodynamic properties and demonstrated the magnetic refrigeration down to well below 1 K by switching off the magnetic field applied for the sample in the quasi-adiabatic environments. We show that geometrical frustration or heavy mass of electrons play the crucial roles in the refrigeration.</p>

Journal

Butsuri

Butsuri 78 (8), 461-466, 2023-08-05

The Physical Society of Japan

Details 詳細情報について

CRID: 1390015564790829824

DOI: 10.11316/butsuri.78.8_461

ISSN: 24238872; 00290181

Text Lang: ja

Data Source

JaLC

Abstract License Flag: Disallowed

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