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

[1] Bean C.P., 1959, J APPL PHYS, V30, pS120, DOI DOI 10.1063/1.2185850
[2] THERMAL FLUCTUATIONS OF A SINGLE-DOMAIN PARTICLE
BROWN, WF
[J]. PHYSICAL REVIEW, 1963, 130 (05): : 1677 - +
[3] MEASUREMENTS OF PARTICLE-SIZE DISTRIBUTION PARAMETERS IN FERROFLUIDS
CHANTRELL, RW
POPPLEWELL, J
CHARLES, SW
[J]. IEEE TRANSACTIONS ON MAGNETICS, 1978, 14 (05) : 975 - 977
[4] STABILITY OF SHERRINGTON-KIRKPATRICK SOLUTION OF A SPIN GLASS MODEL
DEALMEIDA, JRL
THOULESS, DJ
[J]. JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1978, 11 (05): : 983 - 990
[5] DORMAN JL, 1987, PHYS LETT A, V120
[6] A DYNAMIC STUDY OF SMALL INTERACTING PARTICLES - SUPERPARAMAGNETIC MODEL AND SPIN-GLASS LAWS
DORMANN, JL
BESSAIS, L
FIORANI, D
[J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1988, 21 (10): : 2015 - 2034
[7] THEORY OF SPIN GLASSES
EDWARDS, SF
ANDERSON, PW
[J]. JOURNAL OF PHYSICS F-METAL PHYSICS, 1975, 5 (05): : 965 - 974
[8] SUSCEPTIBILITY PHENOMENA IN A FINE PARTICLE SYSTEM .1. CONCENTRATION-DEPENDENCE OF THE PEAK
ELHILO, M
OGRADY, K
CHANTRELL, RW
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1992, 114 (03) : 295 - 306
[9] ELHILO M, 1988, J PHYS C SOLID STATE, V8, P1835
[10] SUPERPARAMAGNETISM AND RELAXATION EFFECTS IN GRANULAR NI-SIO2 AND NI-AL2O3 FILMS
GITTLEMA.JI
ABELES, B
BOZOWSKI, S
[J]. PHYSICAL REVIEW B, 1974, 9 (09): : 3891 - 3897

← 1 2 →