Observation of an Unusual Magnetic Anomaly in the Superconducting Mixed State of Heavy-Fermion Compound UBe13 by Precise dc Magnetization Measurements

Shimizu, Yusei; Haga, Yoshinori; Ikeda, Yoichi et al.

Physical Review Letters, 2012, 109(21), 217001

Permalink : https://hdl.handle.net/2115/51048

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アクセス権	open access
URI	https://hdl.handle.net/2115/51048
タイトル	Observation of an Unusual Magnetic Anomaly in the Superconducting Mixed State of Heavy-Fermion Compound UBe13 by Precise dc Magnetization Measurements
著者	Shimizu, Yusei ; Haga, Yoshinori ; Ikeda, Yoichi ; Yanagisawa, Tatsuya ; Amitsuka, Hiroshi
著者名 Shimizu, Yusei
著者名 Haga, Yoshinori
著者名 Ikeda, Yoichi
e-Rad_Researcher 10456353 著者名 Yanagisawa, Tatsuya
e-Rad_Researcher 40212576 著者名 Amitsuka, Hiroshi
言語	英語
発行日	2012-11-21
出版者	American Physical Society
収録物名	Physical Review Letters
巻(号)	109(21)
ページ	217001
抄録	We have performed precise dc magnetization measurements for a single crystal of UBe13 down to 0.14 K, up to 80 kOe. We observed a magnetic anomaly in the superconducting (SC) mixed state at a field, named H_[Mag] (～26 kOe, at 0.14 K), implying that UBe13 has a magnetically unusual SC state. We studied the magnetization curves of UBe13, assuming that the H_[Mag] anomaly originates from (1) and unusual SC diamagnetic response, or (2) a peculiarity of the normal-state magnetization due to vortices in the SC mixed state. The origin of the H*_[Mag] anomaly is discussed.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	© 2012 American Physical Society
PISSN	0031-9007
関連情報	PMID 23215607
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevLett.109.217001