Influence of annealing temperature on the giant magnetoresistance of Co35(SiO2)65 nano-granular films

被引：1

作者：

Xu, QY ^{[1
]}

Ni, G ^{[1
]}

Sang, H ^{[1
]}

Du, YW ^{[1
]}

机构：

[1] Nanjing Univ, State Key Lab Solid State Microstruct, Nanjing 210093, Peoples R China

来源：

ACTA PHYSICA SINICA | 1999年 / 48卷 / 12期

关键词：

D O I：

10.7498/aps.48.52

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A series of Co-35(SiO2)(65)( volume fraction) nano-granular films of heat treatment at different annealing temperatures( T-a) were fabricated using ion-beam sputtering technique. The giant magnetoresistance of the samples was found to decrease with increasing annealing temperature. It was found that with increasing annealing temperature to 500 K, the magnetic domains of Co-35(SiO2)(65) nano-granular films were more and more clear, which showed that with increasing annealing temperature, the neighboring isolated Co particles tended to arrange their magnetic moments parallel to each other, thus led to the decrease of the giant magnetoresistance of Co-35(SiO2)(65) nano-granular films with increasing annealing temperature.

引用

页码：S52 / S55

页数：4

共 8 条

[1] GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES
BAIBICH, MN
BROTO, JM
FERT, A
VANDAU, FN
PETROFF, F
EITENNE, P
CREUZET, G
FRIEDERICH, A
CHAZELAS, J
[J]. PHYSICAL REVIEW LETTERS, 1988, 61 (21) : 2472 - 2475
[2] GIANT MAGNETORESISTANCE IN HETEROGENEOUS CU-CO ALLOYS
BERKOWITZ, AE
MITCHELL, JR
CAREY, MJ
YOUNG, AP
ZHANG, S
SPADA, FE
PARKER, FT
HUTTEN, A
THOMAS, G
[J]. PHYSICAL REVIEW LETTERS, 1992, 68 (25) : 3745 - 3748
[3] CHEN HY, 1998, ACTA PHYS SINICA, V47, P2046
[4] LAYERED MAGNETIC-STRUCTURES - EVIDENCE FOR ANTIFERROMAGNETIC COUPLING OF FE LAYERS ACROSS CR INTERLAYERS
GRUNBERG, P
SCHREIBER, R
PANG, Y
BRODSKY, MB
SOWERS, H
[J]. PHYSICAL REVIEW LETTERS, 1986, 57 (19) : 2442 - 2445
[5] OHNUMA M, 1998, 4 INT C NAN MAT
[6] GIANT MAGNETORESISTANCE IN THE GRANULAR CO-AG SYSTEM
XIAO, JQ
JIANG, JS
CHIEN, CL
[J]. PHYSICAL REVIEW B, 1992, 46 (14): : 9266 - 9269
[7] GIANT MAGNETORESISTANCE IN NONMULTILAYER MAGNETIC SYSTEMS
XIAO, JQ
JIANG, JS
CHIEN, CL
[J]. PHYSICAL REVIEW LETTERS, 1992, 68 (25) : 3749 - 3752
[8] The giant magnetoresistance and domain observation of Co35(SiO2)65 nano-granular film
Xu, QY
Chen, H
Sang, H
Yin, XB
Ni, G
Lu, J
Wang, M
Du, YW
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 204 (1-2) : 73 - 78

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