Magnetization and NMR studies of the spin 1/2 antiferromagnet on the kagome lattice

被引：2

作者：

Kawahara, S.

Ueda, M.

Maegawa, S. ^{[1
]}

Fujita, K.

Yamaguchi, R.

机构：

[1] Kyoto Univ, Grad Sch Human & Environm Studies, Kyoto 6068501, Japan

[2] Kyoto Univ, Grad Sch Global Environm Studies, Kyoto 6068501, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

kagome lattice; antiferromagnet; frustration; magnetization; susceptibility; NMR; relaxation; quantum spin;

D O I：

10.1016/j.jmmm.2003.12.413

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetization and H-1-NMR measurements of the s = 1/2 kagome lattice antiferromagnet, [Cu-3(titmb)(2) (CH3CO2)(6)] center dot H2O, have been performed between 1.5 and 300 K to study the magnetic properties in the quantum spin frustrated magnet. The measured susceptibility obeys the Curie-Weiss law and no magnetic phase transition was observed down to 1.5 K. The spin-lattice relaxation rate T-1(-1) shows that the ground state is singlet and the first excited state is triplet separated by the energy gap. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：E999 / E1000

页数：2

共 7 条

[1] RESONATING VALENCE BONDS - NEW KIND OF INSULATOR [J].