Field-induced anomaly in the anisotropic non-Fermi-liquid normal state of UBe $_{13}$

Shimizu, Yusei*; Kittaka, Shunichiro*; Kono, Yohei*; Nakamura, Shota*; Haga, Yoshinori ; Yamamoto, Etsuji ; Machida, Kazushige*; Amitsuka, Hiroshi*; Sakakibara, Toshiro*

We report the results of high-resolution dc magnetization and specific heat measurements on the unconventional superconductor UBe $_{13}$ .Suppression of the non-Fermi-liquid behavior under field and a nontrivial fifth-order magnetic susceptibility were observed at low temperatures, suggesting the Fermi-surface reconstruction accompanying the crossover from non-Fermi-liquid to Fermi-liquid state in UBe $_{13}$ .

Language	:	English
Journal	:	Physical Review B
Volume	:	112
Number	:	24
Pages	:	p.245157_1 - 245157_10
Publication Year/Month	:	2025/12
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Paper URL	:	https://doi.org/10.1103/bxq6-tznr
DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	Heavy Fermion; superconductivity; non-Fermi-liquid behavior
Research Facility	:	第4研究棟
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Cooperating Institute	:	東京大学

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Registration No. : AA20250582
JAEA Abstracts No. : 54000140
Paper Submission No. : 30526

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