Magnetic ordering of antiferromagnetic trimer system 2b·3CuCl 2·2H2O

M. Sanda, K. Kubo, T. Asano, H. Morodomi, Y. Inagaki, T. Kawae, J. Wang, A. Matsuo, K. Kindo, T. J. Sato

研究成果: Contribution to journalConference article査読

2 被引用数 (Scopus)

抄録

In this paper, we present the magnetic properties of 2b·3CuCl 2·2H2O (b = betaine, C5H11NO 2). 2b·3CuCl2·2H2O is the first model substance for a two-dimensional S = 1/2 orthogonal antiferromagnetic trimer system. We have performed magnetic susceptibility, magnetization curve, and specific heat under extreme conditions: low temperatures and high magnetic fields in this system. The experimental results indicate that this substance is a magnetically S = 1/2 antiferromagnetic trimer system. The magnetization also shows one-third of the saturation value (MS ∼ 3.2μB/f.u.) between 5 and 14T The specific heat in a zero field shows a sharp peak at 1.38K corresponding to a long-range magnetic ordering, TN. As the magnetic field increases, the TN shifts remarkably to a lower temperature and is suppressed. Above 5T, the specific heat has no anomaly down to 150mK In the plateau region with an energy gap, the magnetic ordering seems to be disappeared.

本文言語英語
論文番号032054
ジャーナルJournal of Physics: Conference Series
400
PART 3
DOI
出版ステータス出版済み - 2012
イベント26th International Conference on Low Temperature Physics, LT 2011 - Beijing, 中国
継続期間: 8 10 20118 17 2011

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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