Characteristic high-field magnetization in a transuranium antiferromagnet NpRhGa5

Kiyohiro Sugiyama, Hiroshi Nakashima, Dai Aoki, Yoshinori Haga, Etsuji Yamamoto, Akio Nakamura, Yoshiya Homma, Yoshinobu Shiokawa, Koichi Kindo, Masayuki Hagiwara, Yoshichika Onuki

研究成果: Article査読

6 被引用数 (Scopus)

抄録

We have measured the high-field magnetization for a transuranium antiferromagnet NpRhGa5 with two successive antiferromagnetic transition temperatures of TN1 = 36 and TN2 = 32 K and an ordered moment of 0.96 μB/Np. For the magnetic field along the easy-axis of the [100] direction of the tetragonal structure, the magnetization indicates a metamagnetic transition at Hc = 26 T with a sharp step and saturates above Hs = 38 T, with 0.43 μB/Np. On the other hand, the hard-axis magnetization for H ∥ [001] increases linearly and saturates above Hs = 28 T, with 0.44 μB/Np. These magnetization curves were discussed on the basis of reorientation and reduction of the magnetic moment.

本文言語English
論文番号094707
ジャーナルjournal of the physical society of japan
75
9
DOI
出版ステータスPublished - 2006 9

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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