Neutron diffraction study of triangular lattice antiferromagnet CuFeO2 under high magnetic field

被引：22

作者：

Mitsuda, S ^{[1
]}

Uno, T

Mase, M

Nojiri, H

Takahashi, K

Motokawa, M

Arai, M

机构：

[1] Tokyo Univ Sci, Dept Phys, Tokyo 162, Japan

[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 980, Japan

[3] Natl Lab High Energy Phys, Tsukuba, Ibaraki 305, Japan

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1999年 / 60卷 / 8-9期

关键词：

oxides; neutron scattering; magnetic structure; phase transitions;

D O I：

10.1016/S0022-3697(99)00096-7

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The first step of multi-step metamagnetic phase transitions of triangular lattice antiferromagnet (TLA) CuFeO2 has been studied at 4.2 K by pulsed neutron diffraction technique with repeating pulsed magnetic fields up to 13 T. Corresponding to the metamagnetic phase transition from 4-sublattice ground state, (1/5,1/5,3/2) magnetic Bragg reflection is clearly observed, implying that the first field-induced state is a "5-sublattice-like magnetic state", as predicted by a 2D ising spin TLA model with competing exchange interactions up to third neighbors. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1249 / 1251

页数：3

共 6 条

[1]

AJIRO Y, 1994, PHYSICA B, V201, P74

[2] Triangular antiferromagnets [J].