OPTICAL-SCATTERING AND X-RAY-SCATTERING STUDIES OF IONIC FERROFLUIDS OF MNFE2O4,GAMMA-FE2O3, AND COFE2O4

被引：25

作者：

DASILVA, MF

NETO, AMF

机构：

[1] Instituto de Física, Universidade de Sao Paulo, 01452-990 Sao Paulo, Sao Paulo

来源：

PHYSICAL REVIEW E | 1993年 / 48卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.48.4483

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Ionic ferrofluids of MnFe2O4, gamma-Fe2O3, and CoFe2O4 has been investigated by means of optical- and x-ray-scattering techniques. The optical birefringence measured as a function of temperature, without any magnetic field, showed the existence of a nematic-type order in these materials. Scattering results indicate the existence of bundlelike aggregates in Mn samples. The origin of the birefringence is discussed in terms of the shape anisotropy of the magnetic particles.

引用

页码：4483 / 4491

页数：9

共 21 条

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