GIANT MAGNETORESISTANCE STUDIES IN (FE,CO)-AG FILMS

被引：53

作者：

TSOUKATOS, A ^{[1
]}

WAN, H ^{[1
]}

HADJIPANAYIS, GC ^{[1
]}

UNRUH, KM ^{[1
]}

LI, ZG ^{[1
]}

机构：

[1] DUPONT CO INC,CENT R&D,EXPTL STN,WILMINGTON,DE 19880

来源：

JOURNAL OF APPLIED PHYSICS | 1993年 / 73卷 / 10期

关键词：

D O I：

10.1063/1.353685

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Giant magnetoresistance (GMR) values were meas red in thin films of Fe and Co in Ag. The best GMR results were observed in Ag-rich specimens, with maxima of 25% (30 K) and 14% (20 K) observed in Co20Ag80 and Fe25Ag75, respectively. Magnetic data indicate a spin glasslike behavior in the as-deposited Ag-rich films. The as-made samples have a nanostructure, with a face centered cubic structure. Annealing of the samples over the temperature range of 200-degrees-C to 700-degrees-C led to grain growth and subsequent phase separation of the constituent metals. A summary of the magnetic and electrical transport properties is presented, in relation to the crystal structure and microstructure of the TM-Ag films (TM = Fe,Co).

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页码：5509 / 5511

页数：3

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