MAGNETIC-BEHAVIOR OF NANOCRYSTALLINE COBALT FERRITE FILMS

被引：17

作者：

KOUTANI, S ^{[1
]}

GAVOILLE, G ^{[1
]}

机构：

[1] FAC SCI VANDOEUVRE NANCY,MINERAL CRISTALLOG & PHYS IR LAB,CNRS,URA 809,F-54506 VANDOEUVRE NANCY,FRANCE

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1994年 / 138卷 / 03期

关键词：

D O I：

10.1016/0304-8853(94)90044-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

When prepared with a nanocrystalline structure, cobalt ferrite films often exhibit very low magnetization compared with that of the bulk material. We report here on low-temperature magnetization measurements which show that the long-range ferrimagnetic order is broken in the films and that a glassy behavior results. Even though we cannot ascertain the nature of the magnetic disorder, our data are consistent with the molecular field theory of Ising spin glasses with strong ferromagnetic interactions.

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页码：237 / 243

页数：7

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