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Magnetic-field-induced metallic state in $$beta$$-US$$_2$$

Sugiyama, Kiyohiro*; Hirose, Yusuke*; Enoki, Kentaro*; Ikeda, Shugo*; Yamamoto, Etsuji  ; Tateiwa, Naoyuki   ; Haga, Yoshinori   ; Kida, Takanori*; Hagiwara, Masayuki*; Kindo, Koichi*; Honda, Fuminori*; Settai, Rikio*; Onuki, Yoshichika

Magnetic and transport properties under high magnetic field were studied on a magnetic semiconductor $$beta$$-US$$_2$$. Large magnetization reaching 1.75 $$mu_{rm B}$$ has been observed at 50 T. At the same time, resistivity decreases drastically from insulating behavior at 0 T to almost metallic characteristics at 50 T. The results are discussed based on the magnetic polaron mechanism.



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Category:Physics, Multidisciplinary



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