Pressure-temperature-field phase diagram in the ferromagnet UP

Araki, Shingo*; Hayashida, Minami*; Nishiumi, Naoto*; Manabe, Hiroki*; Ikeda, Yoichi*; Kobayashi, Tatsuo*; Murata, Keizo*; Inada, Yoshihiko*; Winiewski, P.*; Aoki, Dai*; Onuki, Yoshichika; Yamamoto, Etsuji ; Haga, Yoshinori

Pressure-temperature-field phase diagram and quantum fluctuation effect are investigated in the itinerant ferromagnet UP. The zero-temperature ferromagnetic-to-paramagnetic transition is located at $P_{rm c}$ 4.0 GPa. The tricritical point exists at 3.8 GPa and 32 K, where the ferromagnetic transition changes from second- to first-order. A prominent quantum fluctuation effect was observed in resistivity behavior new the tricritical point.

Language	:	English
Journal	:	Journal of the Physical Society of Japan
Volume	:	84
Number	:	2
Pages	:	p.024705_1 - 024705_8
Publication Year/Month	:	2015/02
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Paper URL	:	https://doi.org/10.7566/JPSJ.84.024705
DOI for research data	:
Keywords	:	強磁性; ウラン化合物; 高圧
Research Facility	:	第4研究棟
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Article of JAEA R&D Review	:
Cooperating Institute	:	岡山大学

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Registration No. : AA20140743
JAEA Abstracts No. : 43001080
Paper Submission No. : 16177

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