Temperature dependence of resistance and magnetoresistance of nanogranular Co-Ag films

被引：29

作者：

Gerber, A ^{[1
]}

Milner, A

Korenblit, IY

Karpovsky, M

Gladkikh, A

Sulpice, A

机构：

[1] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys & Astron, IL-69978 Ramat Aviv, Tel Aviv, Israel

[2] CNRS, Ctr Rech Tres Basses Temp, F-38042 Grenoble, France

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.57.13667

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report a number of unusual features in the temperature dependence of the resistance and the magnetoresistance of nanogranular Co-Ag films at low; temperatures. These include a nonmonotonic temperature dependence of the resistance in a nonmagnetized state, anomalously low exponents in the power-law temperature dependence of the resistivity (down to rho(proportional to)T(1.1)) at high magnetic field, and almost linear temperature dependence of the giant magnetoresistance with no saturation at low temperature.

引用

页码：13667 / 13673

页数：7

共 29 条

[1] Periodic enhancement of the electron-electron interactions and the magnetoresistance in magnetic Co/(Cr/Ag)/Co multilayers [J].

Aliev, FG ;

Kunnen, E ;

Temst, K ;

Mae, K ;

Verbanck, G ;

Barnas, J ;

Moshchalkov, VV ;

Bruynseraede, Y .

PHYSICAL REVIEW LETTERS, 1997, 78 (01) :134-137

[2] 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

[3] HOW TO ISOLATE EFFECTS OF SPIN-FLIP SCATTERING ON GIANT MAGNETORESISTANCE IN MAGNETIC MULTILAYERS [J].

BASS, J ;

YANG, Q ;

LEE, SF ;

HOLODY, P ;

LOLOEE, R ;

SCHROEDER, PA ;

PRATT, WP .

JOURNAL OF APPLIED PHYSICS, 1994, 75 (10) :6699-6703

[4] 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

[5] 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

[6]

CHIEN CL, 1993, J APPL PHYS, V73, P56309

[7]

CULLITY BD, 1972, INTRO MAGNETIC MAT, P414

[8] SPIN RELAXATION EFFECTS IN THE PERPENDICULAR MAGNETORESISTANCE OF MAGNETIC MULTILAYERS [J].

FERT, A ;

DUVAIL, JL ;

VALET, T .

PHYSICAL REVIEW B, 1995, 52 (09) :6513-6521

[9]

GEOGHEGAN DS, UNPUB

[10] PERPENDICULAR GIANT MAGNETORESISTANCE OF MICROSTRUCTURED FE/CR MAGNETIC MULTILAYERS FROM 4.2 TO 300 K [J].

GIJS, MAM ;

LENCZOWSKI, SKJ ;

GIESBERS, JB .

PHYSICAL REVIEW LETTERS, 1993, 70 (21) :3343-3346

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