Successive phase transitions and phase diagrams for the quasi-two-dimensional easy-axis triangular antiferromagnet Rb4Mn(MoO4)3

被引：64

作者：

Ishii, R. ^{[1
]}

Tanaka, S. ^{[1
]}

Onuma, K. ^{[2
]}

Nambu, Y. ^{[3
,4
,5
]}

Tokunaga, M. ^{[1
]}

Sakakibara, T. ^{[1
]}

Kawashima, N. ^{[1
]}

Maeno, Y. ^{[2
]}

Broholm, C. ^{[3
,4
,5
]}

Gautreaux, D. P. ^{[6
]}

Chan, J. Y. ^{[6
]}

Nakatsuji, S. ^{[1
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

[2] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

[3] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[4] Johns Hopkins Univ, Inst Quantum Matter, Baltimore, MD 21218 USA

[5] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA

[6] Louisiana State Univ, Dept Chem, Baton Rouge, LA 70803 USA

来源：

EPL | 2011年 / 94卷 / 01期

基金：

美国国家科学基金会;

关键词：

SPIN SYSTEM SRCU2(BO3)(2); DIMER GROUND-STATE; HEISENBERG-ANTIFERROMAGNET; LATTICE ANTIFERROMAGNET; NEEL ORDER; MAGNETIZATION; MODEL;

D O I：

10.1209/0295-5075/94/17001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using magnetic, thermal and neutron measurements we show that Rb4Mn(MoO4)(3) is a quasi-2D triangular Heisenberg antiferromagnet with easy-axis anisotropy and successive transitions bracketing an intermediate collinear phase. An accurate quantitative account of the phase diagram is achieved through Monte Carlo simulation of a spin Hamiltonian with easy-axis anisotropy D = 0.22J. Copyright (C) EPLA, 2011

引用

页数：5

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