INTERACTION EFFECTS AND MAGNETIC-ORDERING IN GMR ALLOYS

被引：9

作者：

GREAVES, SJ ^{[1
]}

ELHILO, M ^{[1
]}

OGRADY, K ^{[1
]}

WATSON, M ^{[1
]}

机构：

[1] COVENTRY UNIV,CTR DATA STORAGE MAT,COVENTRY CV1 5FB,W MIDLANDS,ENGLAND

来源：

JOURNAL OF APPLIED PHYSICS | 1994年 / 76卷 / 10期

关键词：

D O I：

10.1063/1.358472

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this paper AgNiFe alloy films were examined both before and after annealing. Characterization of the samples and examination of interaction effects was carried out by measuring the temperature decay of remanence, initial susceptibility, and magnetoresistance. The temperature decay of remanence reveals that annealing widens the distribution of energy barriers, which is indicative of grain growth. The behavior of the initial susceptibility as a function of temperature is analogous to that found in spin glasses. From these measurements, it is believed that interaction effects in these systems are small.

引用

页码：6802 / 6804

页数：3

共 6 条

[1]

DICKSON DPE, 1987, J MAGN MAGN MATER, V69, P276

[2]

ELHILO M, 1994, J APPL PHYS, V76

[3] SUPERPARAMAGNETISM AND RELAXATION EFFECTS IN GRANULAR NI-SIO2 AND NI-AL2O3 FILMS [J].

GITTLEMA.JI ;

ABELES, B ;

BOZOWSKI, S .

PHYSICAL REVIEW B, 1974, 9 (09) :3891-3897

[4]

GITTLEMAN JI, 1971, PHYS REV B, V5, P3009

[5]

OGRADY K, 1993, EA03 INTERMAG

[6] A MECHANISM OF MAGNETIC HYSTERESIS IN HETEROGENEOUS ALLOYS [J].

STONER, EC ;

WOHLFARTH, EP .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1948, 240 (826) :599-642

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