ELECTRON-PARAMAGNETIC-RESONANCE STUDY OF IONIC WATER-BASED MANGANESE FERRITE FERROFLUIDS

被引：52

作者：

TRONCONI, AL

MORAIS, PC

PELEGRINI, F

TOURINHO, FA

机构：

[1] UNIV FED GOIAS,DEPT FIS,BR-74560 GOIANIA,BRAZIL

[2] UNIV BRASILIA,DEPT QUIM,BR-70910 BRASILIA,DF,BRAZIL

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1993年 / 122卷 / 1-3期

基金：

巴西圣保罗研究基金会;

关键词：

Ferrites - Ferromagnetic materials - Manganese compounds - Mathematical models - Paramagnetic resonance - Particles (particulate matter);

D O I：

10.1016/0304-8853(93)91046-A

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report for the first time electron paramagnetic resonance linewidth measurements in an ionic water-based ferrofluid. The linewidth broadening is studied as a function of the particle-particle distance. We change the average particle-particle distance from 20 to 89 nm by diluting a concentrated sample with water. Magnetic and electric interactions between adjacent particles are used to explain the experimental data.

引用

页码：90 / 92

页数：3

共 7 条

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