Magnetization process in GdB4

Akiko Kikkawa, Koichi Katsumata, Yasuo Narumi, Ken Ichi Suga, Tomoya Fukui, Takashi Sugaya, Koichi Kindo, Fumitoshi Iga, Shinji Michimura

研究成果: Article査読

5 被引用数 (Scopus)


Magnetization measurements are made on single crystal samples of GdB 4 under static fields up to 14 T and pulsed fields up to ∼60 T. When the external magnetic field, H, is applied along the [110] spin easy axis, the magnetization increases non-linearly at around 12 T, indicating a spin reorientation from the easy axis to the direction perpendicular to H. The values of saturation field, Hs, are, Hs[110] ≃ 52 T, Hs[100] ≃ 52 T and Hs [001] ≃ 54 T. We analyze the results based on the two-dimensional model proposed by Shastry and Sutherland [B. S. Shastry and B. Sutherland: Physica B 108 (1981) 1069]. We obtain J1/kB = -8:9K and J2/kB = -0.68 K, where, J1 and J 2 are the diagonal exchange interaction and the exchange interaction along the edges of a square, respectively.

ジャーナルjournal of the physical society of japan
出版ステータスPublished - 2007 2月

ASJC Scopus subject areas

  • 物理学および天文学(全般)


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