Spin dynamics in the concentrated spin-glass system Y(Al1-xFex)2

被引：4

作者：

Telling, MTF

Dann, JA

Cywinski, R ^{[1
]}

Bogner, J

Reissner, M

Steiner, W

机构：

[1] Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland

[2] Rutherford Appleton Lab, ISIS, Didcot OX11 0QX, Oxon, England

[3] Tech Univ Vienna, Inst Angew & Tech Phys, Vienna, Austria

来源：

PHYSICA B | 2000年 / 289卷

基金：

英国工程与自然科学研究理事会; 奥地利科学基金会;

关键词：

spin glass; Mossbauer; stretched exponential relaxation;

D O I：

10.1016/S0921-4526(00)00369-0

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 [凝聚态物理];

摘要：

The zero-field mu SR spectra obtained from Y(Al1-xFex)(2) alloys at concentrations below x < 0.75 are stretched exponential in form and characteristic of those of a concentrated spin glass in which an increasingly broad distribution of spin relaxation rates evolves as the glass temperature is approached. These mu SR results are discussed within the context of recent high-field Mossbauer effect measurements on Y(Al1-xFex)(2) alloys from which estimates of the lifetime of magnetic correlations have been obtained. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：213 / 216

页数：4

共 7 条

[1]

ISOMER-SHIFT OF FE IN THE INTERMETALLIC COMPOUND Y(FE1-XALX)2 WITH C15-TYPE LAVES PHASE-STRUCTURE [J].