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

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Title: Observation of an Unusual Magnetic Anomaly in the Superconducting Mixed State of Heavy-Fermion Compound UBe13 by Precise dc Magnetization Measurements
Authors: Shimizu, Yusei Browse this author
Haga, Yoshinori Browse this author
Ikeda, Yoichi Browse this author
Yanagisawa, Tatsuya Browse this author →KAKEN DB
Amitsuka, Hiroshi Browse this author →KAKEN DB
Issue Date: 21-Nov-2012
Publisher: American Physical Society
Journal Title: Physical Review Letters
Volume: 109
Issue: 21
Start Page: 217001
Publisher DOI: 10.1103/PhysRevLett.109.217001
PMID: 23215607
Abstract: 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.
Rights: © 2012 American Physical Society
Type: article
URI: http://hdl.handle.net/2115/51048
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 網塚 浩

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