Neutron spin echo studies of SrCr8Ga4O19

被引：8

作者：

Uemura, YJ

Gaulin, BD

Mekata, M

Mirebeau, I

Pouget, S

Tholence, JL

机构：

[1] Columbia Univ, Dept Phys, New York, NY 10027 USA

[2] McMaster Univ, Dept Phys, Hamilton, ON, Canada

[3] Fukui Univ, Dept Appl Phys, Fukui 910, Japan

[4] CENS, Lab Leon Brillouin, Grenoble, France

[5] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France

[6] CNRS, Ctr Rech Tres Basses Temp, F-38042 Grenoble, France

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1998年 / 177卷

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

Kagome lattice; SCGO; neutron spin echo;

D O I：

10.1016/S0304-8853(97)00996-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We performed neutron spin echo (NSE) measurements of the geometrically frustrated Kagome lattice spin system SrCrxGa12-xO19(SCGO)(x = 8), with a momentum transfer at Q = 1.4 Angstrom(-1). At high temperature (T = 20 K), the echo intensity quickly drops to zero, reflecting fast spin fluctuations. Below T congruent to 3.5 K, we found a finite intensity persisting to long times, up to t congruent to 1 ns. The persisting intensity increases with decreasing temperature, corresponding to the build-up of a static order parameter. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：701 / 702

页数：2

共 6 条

[1] ANTIFERROMAGNETIC FLUCTUATIONS AND SHORT-RANGE ORDER IN A KAGOME LATTICE [J].