SPIN-DISORDER AND SPIN-VALVE MAGNETORESISTANCE IN GRANULAR ALLOYS

被引：2

作者：

CHAMBEROD, A

COWACHE, C

DIENY, B

PIERRE, J

REDON, O

RODMACQ, B

TEIXEIRA, S

机构：

[1] CNRS,LAB LOUIS NEEL,F-38042 GRENOBLE,FRANCE

[2] CEN GRENOBLE,CEA,DEPT RECH FONDAMENTALE MAT CONDENSEE,F-38054 GRENOBLE 9,FRANCE

[3] UNIV FED RIO GRANDE SUL,INST FIS,BR-91501970 PORTO ALEGRE,RS,BRAZIL

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1995年 / 140卷

关键词：

D O I：

10.1016/0304-8853(94)01518-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two main contributions to the giant magnetoresistance (MR) in granular alloys have been identified: Spin-valve MR (as in magnetic multilayers) and spin-disorder MR (as in bulk ferromagnets close to their Curie temperature or as in spin-glasses). Both are due to spatial inhomogeneities in the magnetization but on different scales. They have different thermal variations.

引用

收藏

页码：507 / 508

页数：2

相关论文

共 8 条

[1] 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

[2] GIANT NEGATIVE MAGNETORESISTANCE IN GRANULAR FERROMAGNETIC SYSTEMS [J].

CHIEN, CL ;

XIAO, JQ ;

JIANG, JS .

JOURNAL OF APPLIED PHYSICS, 1993, 73 (10) :5309-5314

[3] ANOMALIES DE RESISTIVITE DANS CERTAINS METAUX MAGNETIQUES [J].

DEGENNES, PG ;

FRIEDEL, J .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1958, 4 (1-2) :71-77

[4] STRUCTURAL, MAGNETIC AND TRANSPORT-PROPERTIES OF NIFEXAG(1-X) HETEROGENEOUS ALLOYS [J].

DIENY, B ;

TEIXEIRA, SR ;

RODMACQ, B ;

COWACHE, C ;

AUFFRET, S ;

REDON, O ;

PIERRE, J .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1994, 130 (1-3) :197-215

[5]

TEIXEIRA SR, 1994, J CONDENS MATER, V6, P30

[6] GIANT MAGNETORESISTANCE IN NONMULTILAYER MAGNETIC SYSTEMS [J].

XIAO, JQ ;

JIANG, JS ;

CHIEN, CL .

PHYSICAL REVIEW LETTERS, 1992, 68 (25) :3749-3752

[7] EXTRAORDINARY HALL-EFFECT AND GIANT MAGNETORESISTANCE IN THE GRANULAR CO-AG SYSTEM [J].

XIONG, P ;

XIAO, G ;

WANG, JQ ;

XIAO, JQ ;

JIANG, JS ;

CHIEN, CL .

PHYSICAL REVIEW LETTERS, 1992, 69 (22) :3220-3223

[8] CONDUCTIVITY AND MAGNETORESISTANCE IN MAGNETIC GRANULAR FILMS [J].

ZHANG, SF ;

LEVY, PM .

JOURNAL OF APPLIED PHYSICS, 1993, 73 (10) :5315-5319