LOCAL ORDER AND GLOBAL DISORDER IN BIDISPERSE FERROFLUIDS

被引：3
|
作者：
ROSENBAUM, TF [1 ]
SHI, XD [1 ]
NAGEL, SR [1 ]
机构：
[1] UNIV CHICAGO, DEPT PHYS, CHICAGO, IL 60637 USA
来源：
JOURNAL OF PHYSICAL CHEMISTRY | 1995年 / 99卷 / 09期
关键词：
D O I：
10.1021/j100009a050
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We study the magnetization response of a frozen ferrofluid as large-diameter (10-nm) magnetite particles are added to a dilute, random distribution of small-diameter (5-nm) moments. The small dipole moments are free to relax down to low temperatures, while the large dipoles become immobilized when the solvent freezes, acting as a random local field. The glass transition temperature is a sensitive function of the random field concentration, permitting the investigation of the crossover from spin-glass to random-field behavior.
引用
收藏
页码：2875 / 2877
页数：3
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