Neutron powder diffraction experiments on the layered triangular-lattice antiferromagnets RbFe(MoO4)2 and CsFe(SO4)2

被引:35
作者
Inami, Toshiya [1 ]
机构
[1] Japan Atom Energy Agcy, Synchrotron Radiat Res Ctr, Sayo, Hyogo 6795148, Japan
关键词
triangular-lattice antiferromagnet; powder neutron diffraction; one-third plateau; LONG-RANGE ORDER;
D O I
10.1016/j.jssc.2007.04.022
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Powder specimens of the layered triangular-lattice anti ferromagnets RbFe(MoO4)(2) and CsFe(SO4)(2) were prepared and neutron powder diffraction experiments were carried out in order to determine the magnetic structure. The magnetic structure of both compounds is the so-called 120 degrees structure in the triangular plane and is incommensurate between the planes. The ordered moments are confined in the basal ab-plane. It is also found that RbFe(MoO4)(2) exhibits structural phase transition at around 190 K from P $(3) over bar $ ml to P $(3) over bar $ (c) 2007 Elsevier Inc. All rights reserved.
引用
收藏
页码:2075 / 2079
页数:5
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