SMALL-ANGLE NEUTRON-SCATTERING STUDIES ON FE0.715AL0.285 REENTRANT SPIN-GLASS

被引:12
|
作者
SUZUKI, J
ENDOH, Y
ARAI, M
FURUSAKA, M
YOSHIZAWA, H
机构
[1] TOHOKU UNIV,DEPT PHYS,AOBA KU,SENDAI,MIYAGI 980,JAPAN
[2] UNIV TOKYO,INST SOLID STATE PHYS,MINATO KU,TOKYO 106,JAPAN
关键词
experiment; Fe0.715Al0.285; pulsed cold neutron; reentrant spin glass; small angle neutron scattering; spin correlation;
D O I
10.1143/JPSJ.59.718
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Small angle neutron scattering measurements have been performed on a single crystal of the reentrant spin glass alloy Fe0.715Al0.285. The present study covers a wide range in the momentum transfer Q by utilizing pulsed cold neutrons. The neutron scattering data are analyzed assuming that the observed scattering at smaller Q is attributed to macroscopic thermal spin fluctuations and that the one at larger Q is dominated by microscopic fluctuations. The results suggest that the latter fluctuations might trigger a breaking down of the ferromagnetic phase and finally induce a spin glass state. © 1990, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.
引用
收藏
页码:718 / 724
页数:7
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