Magnetic excitations in triangular lattice NaCrO2

被引：17

作者：

Hsieh, D. ^{[1
]}

Qian, D. ^{[1
]}

Berger, R. F. ^{[2
]}

Cava, R. J. ^{[2
]}

Lynn, J. W. ^{[3
]}

Huang, Q. ^{[3
]}

Hasan, M. Z. ^{[1
]}

机构：

[1] Princeton Univ, Joseph Henry Labs Phys, Princeton, NJ 08544 USA

[2] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA

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

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2008年 / 69卷 / 12期

基金：

美国国家科学基金会;

关键词：

Neutron scattering;

D O I：

10.1016/j.jpcs.2008.06.124

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the first inelastic neutron scattering measurements on the rhombohedrally stacked triangular antiferromagnet NaCrO2 which has recently been shown via mu SR and NMR measurements to exhibit an unusually broad fluctuating cross-over regime extending far below the onset of spin freezing at T,. Our results show that strong spin fluctuations persist far below T, and that dispersive spin wave excitations only appear near the cross-over temperature 0.75T(c). (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：3174 / 3175

页数：2

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