EXTRAORDINARY HALL-EFFECT AND GIANT MAGNETORESISTANCE IN THE GRANULAR CO-AG SYSTEM

被引：231

作者：

XIONG, P ^{[1
]}

XIAO, G ^{[1
]}

WANG, JQ ^{[1
]}

XIAO, JQ ^{[1
]}

JIANG, JS ^{[1
]}

CHIEN, CL ^{[1
]}

机构：

[1] JOHNS HOPKINS UNIV,DEPT PHYS & ASTRON,BALTIMORE,MD 21218

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.69.3220

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the magnetotransport properties of a new metallic granular Co-Ag system. The spin-dependent electron scattering is revealed in the forms of a giant magnetoresistance and an extraordinary Hall effect, both of which are found to be strongly dependent on the Co particle size and the electron mean free path. The experimental correlation rho(xy) is-proportional-to rho(xx)3.7 uncovered is unexpected from existing theories. Interfacial scatterings of intermediate range are required in order to account for the anomalous magnetotransport in this magnetic granular system.

引用

页码：3220 / 3223

页数：4

共 18 条

[1] GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES [J].

BAIBICH, MN ;

BROTO, JM ;

FERT, A ;

VANDAU, FN ;

PETROFF, F ;

EITENNE, P ;

CREUZET, G ;

FRIEDERICH, A ;

CHAZELAS, J .

PHYSICAL REVIEW LETTERS, 1988, 61 (21) :2472-2475

[2] THEORY OF THE MAGNETORESISTANCE IN MAGNETIC MULTILAYERS - ANALYTICAL EXPRESSIONS FROM A SEMICLASSICAL APPROACH [J].

BARTHELEMY, A ;

FERT, A .

PHYSICAL REVIEW B, 1991, 43 (16) :13124-13129

[3] Side-jump mechanism for the Hall effect of ferromagnets [J].

Berger, L. .

PHYSICAL REVIEW B-SOLID STATE, 1970, 2 (11) :4559-4566

[4]

Berger L., 1979, HALL EFFECTS ITS APP, P55

[5] GIANT MAGNETORESISTANCE IN HETEROGENEOUS CU-CO ALLOYS [J].

BERKOWITZ, AE ;

MITCHELL, JR ;

CAREY, MJ ;

YOUNG, AP ;

ZHANG, S ;

SPADA, FE ;

PARKER, FT ;

HUTTEN, A ;

THOMAS, G .

PHYSICAL REVIEW LETTERS, 1992, 68 (25) :3745-3748

[6] THEORY OF GIANT MAGNETORESISTANCE EFFECTS IN MAGNETIC LAYERED STRUCTURES WITH ANTIFERROMAGNETIC COUPLING [J].

CAMLEY, RE ;

BARNAS, J .

PHYSICAL REVIEW LETTERS, 1989, 63 (06) :664-667

[7] ROUGHNESS AND GIANT MAGNETORESISTANCE IN FE/CR SUPERLATTICES [J].

FULLERTON, EE ;

KELLY, DM ;

GUIMPEL, J ;

SCHULLER, IK ;

BRUYNSERAEDE, Y .

PHYSICAL REVIEW LETTERS, 1992, 68 (06) :859-862

[8] SIDE-JUMP MECHANISM FOR FERROMAGNETIC HALL-EFFECT [J].

LYO, SK ;

HOLSTEIN, T .

PHYSICAL REVIEW LETTERS, 1972, 29 (07) :423-&

[9] EXCHANGE INTERACTIONS AND GIANT MAGNETORESISTANCE IN MAGNETIC MULTILAYERS [J].

MATHON, J .

CONTEMPORARY PHYSICS, 1991, 32 (03) :143-156

[10] OSCILLATORY MAGNETIC EXCHANGE COUPLING THROUGH THIN COPPER LAYERS [J].

PARKIN, SSP ;

BHADRA, R ;

ROCHE, KP .

PHYSICAL REVIEW LETTERS, 1991, 66 (16) :2152-2155

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