Crossbreeding between experiment and theory on orthogonal dimer spin system

Hiroshi Kageyama, Yutaka Ueda, Yasuo Narumi, Koichi Kindo, Masashi Kosaka, Yoshiya Uwatoko

研究成果: Article査読

18 被引用数 (Scopus)

抄録

We have investigated two-dimensional spin systems SrCu2 (BO3)2 and Nd2BaZnO5, both of which have a unique topology that is equivalent to the Shastry-Sutherland lattice. The magnetization curve of SrCu2(BO3)2 reveals that, unlike 1/8 and 1/4 plateaux, a 1/3 plateau is very stable, surviving at least up to 69 T. The pressure dependence of susceptibility up to 10 kbar indicates that the pressure causes the system to approach the critical point to some other states. On the other hand, Nd2BaZnO5 with rather classical spins exhibits an antiferromagnetic long range ordering at 2.4 K. Finally, other experimental candidates of extended Shastry-Sutherland system will be briefly presented.

本文言語English
ページ(範囲)17-22
ページ数6
ジャーナルProgress of Theoretical Physics
145 SUPPL.
DOI
出版ステータスPublished - 2002

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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