Crossbreeding between experiment and theory on orthogonal dimer spin system

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

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)17-22
Number of pages6
JournalProgress of Theoretical Physics
Issue number145 SUPPL.
Publication statusPublished - 2002 Dec 1

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Kageyama, H., Ueda, Y., Narumi, Y., Kindo, K., Kosaka, M., & Uwatoko, Y. (2002). Crossbreeding between experiment and theory on orthogonal dimer spin system. Progress of Theoretical Physics, (145 SUPPL.), 17-22.