MICROWAVE PROPERTIES OF FERROFLUID COMPOSITES

被引：11

作者：

POPPLEWELL, J

DAVIES, P

LLEWELLYN, JP

OGRADY, K

机构：

[1] Univ Coll of North Wales, Dep of, Physics, Bangor, Wales, Univ Coll of North Wales, Dep of Physics, Bangor, Wales

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1986年 / 54-7卷 / Pt 2期

关键词：

MAGNETIC MEASUREMENTS - Relaxation - MICROWAVES;

D O I：

10.1016/0304-8853(86)90240-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ferrofluid composites containing dispersed metallic particles of tin or copper have a magnetically induced dichroism, which is particle concentration dependent, in the 3 mm microwave region. The system relaxes when the magnetic field ( approximately equals 50 Oe) is removed with an initial relaxation time tau approximately equals 1 s. The subsequent relaxation through Brownian motion is significantly longer with tau approximately equals 10**3 s.

引用

页码：761 / 762

页数：2