Magnetic ordering in a distorted S=1/2 pyrochlore antiferromagnet

被引：15

作者：

Wills, AS

Raymond, S

Henry, JY

机构：

[1] UCL, Dept Chem, London WC1H 0AJ, England

[2] UCL Royal Inst Great Britain, Davy Faraday Res Lab, London W1S 4BS, England

[3] CEA, SPSMS, Dept Rech Fondamentale Mat Condensee, F-38054 Grenoble, France

来源：

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

关键词：

frustration; pyrochlore; antiferromagnet; canted ferromagnet;

D O I：

10.1016/j.jmmm.2003.12.363

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work we explore the structural and magnetic properties of a distorted S = 1/2 pyrochlore antiferromagnet: the mineral clinoatacamite, gamma-Cu-2(OH)(3)Cl. DC magnetization and specific heat data demonstrate its high degree of frustration (\theta(w)\/T-c = -30) and reveal that the Neel groundstate, observed below T-c similar or equal to 6K, features extensive quantum fluctuations. Inelastic neutron scattering is used to quantify the characteristic energy scales of the system. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：850 / 851

页数：2