High-Field Magnetization of USn<FONT SIZE="-1">3</FONT> and UPb<FONT SIZE="-1">3</FONT>

Kiyohiro Sugiyama; Tomoya Iizuka; Dai Aoki; Yoshifumi Tokiwa; Kousaku Miyake; Narumi Watanabe; Koichi Kindo; Tetsutaro Inoue; Etsuji Yamamoto; Yoshinori Haga; Yoshichika Onuki

doi:10.1143/jpsj.71.326

High-Field Magnetization of USn₃ and UPb₃

Kiyohiro Sugiyama, Tomoya Iizuka, Dai Aoki, Yoshifumi Tokiwa, Kousaku Miyake, Narumi Watanabe, Koichi Kindo, Tetsutaro Inoue, Etsuji Yamamoto, Yoshinori Haga, Yoshichika Onuki

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Keywords: USn₃, UPb₃, heavy fermion, metamagnetic transition, high-field magnetization

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2002 Volume 71 Issue 1 Pages 326-331

DOI https://doi.org/10.1143/jpsj.71.326

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Abstract

UX₃ (X=Si, Ge, Sn and Pb) compounds with the cubic crystal structure are interesting in relation with the lattice constant and the electronic state of 5f electrons.We measured the high-field magnetization of USn₃ and UPb₃ grown by the self-flux method.The broad metamagnetic transition was observed in a heavy fermion paramagnetic compound USn₃ at about 30 T, which is similar to the metamagnetism of UPt₃. On the other hand, the sharp metamagnetic transitions were observed in an antiferromagnetic compound UPb₃.

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