SUSCEPTIBILITY PHENOMENA IN A FINE PARTICLE SYSTEM .2. FIELD-DEPENDENCE OF THE PEAK

被引：81

作者：

ELHILO, M

OGRADY, K

CHANTRELL, RW

机构：

[1] UNIV COLL N WALES,SCH ELECT ENGN SCI,MAGNET MAT RES GRP,BANGOR LL57 1UT,GWYNEDD,WALES

[2] UNIV KEELE,DEPT PHYS,KEELE ST5 5BG,STAFFS,ENGLAND

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1992年 / 114卷 / 03期

关键词：

D O I：

10.1016/0304-8853(92)90273-Q

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The field dependence of the peak in the dc susceptibility has been studied for a weakly interacting fine particle system consisting of Fe3O4 particles. Measurements of the peak show that T(g) moves to lower temperatures as the sample is warmed up in a large dc field. Also in this paper the field dependence of the mean blocking temperature [T(BH)] is calculated using the Neel superparamagnetic (blocking) model modified to take into account the effects of particle interactions.

引用

页码：307 / 313

页数：7

共 17 条

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