MAGNETIC-ANISOTROPY BY FERROMAGNETIC PARTICLES ALIGNMENT IN A MAGNETIC-FIELD

被引：48

作者：

YAMAGUCHI, K

MATSUMOTO, K

FUJII, T

机构：

[1] Department of Electrical and Electronic Engineering, Toyohashi University of Technology, Toyohashi, Aichi

来源：

JOURNAL OF APPLIED PHYSICS | 1990年 / 67卷 / 09期

关键词：

D O I：

10.1063/1.344892

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetic and optical properties of films composed of ferromagnetic fine particles aligned in a magnetic field were investigated. The spin-coated films were prepared by using a solution of magnetite fine particles dissolved in water-diluted polyvinyl alcohol (PVA) on glass substrates, and followed by drying at 80°C and solidifying at 200°C in a magnetic field. Linear-chain clusters of magnetite particles were formed in a considerably weak field below 1 kOe, which give rise to magnetic and optical uniaxial anisotropies. Both properties vary depending on preparation conditions such as the particle concentration, the viscosity of the solution, and the field strength during drying.

引用

页码：4493 / 4495

页数：3

共 6 条

[1]

INABA N, 1983, J MAGN SOC JPN, V12, P283

[2] FIELD-DEPENDENT CHAIN FORMATION BY FERROMAGNETIC COLLOIDS [J].