Magnetic diffuse scattering from (La0.8Er0.2)Al2

被引：2
作者：
Pottinger, M. J.
Stewart, J. R.
Cywinski, R. [1 ]
机构：
[1] Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England
[2] Inst Laue Langevin, F-38042 Grenoble, France
来源：
PHYSICA B-CONDENSED MATTER | 2006年 / 385卷
基金：
英国工程与自然科学研究理事会;
关键词：
diffuse scattering; polarization analysis; magnetic correlations; random anisotropy;
D O I：
10.1016/j.physb.2006.05.422
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Diffuse neutron scattering with polarization analysis has been used to probe the spin correlations in the paramagnetic state of (La0.8Er0.2)Al-2, a crystalline alloy which displays many of the characteristics generally associated with amorphous random anisotropy magnets. Whilst the Er spin correlations persist to temperatures more than an order of magnitude higher than the spin freezing temperature (T-f similar to 2K), these weakly ferromagnetic correlations are found to extend only over first and second near-neighbour shells. (c) 2006 Published by Elsevier B.V.
引用
收藏
页码：363 / 365
页数：3
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