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Pressure-temperature-field phase diagram in the ferromagnet U$$_3$$P$$_4$$

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

Pressure-temperature-field phase diagram and quantum fluctuation effect are investigated in the itinerant ferromagnet U$$_3$$P$$_4$$. The zero-temperature ferromagnetic-to-paramagnetic transition is located at $$P_{rm c}$$ $$sim$$ 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.



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Category:Physics, Multidisciplinary



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