Negative spin-valve effect in Co65Fe35/Ag/(Co65Fe35)(50)Gd-50 trilayers

被引：31

作者：

Bellouard, C ^{[1
]}

Rapp, HD ^{[1
]}

George, B ^{[1
]}

Mangin, S ^{[1
]}

Marchal, G ^{[1
]}

Ousset, JC ^{[1
]}

机构：

[1] INST NATL SCI APPL,SERV NATL CHAMPS MAGNET PULSES,COMPLEXE SCI RANGUEIL,F-31077 TOULOUSE,FRANCE

来源：

PHYSICAL REVIEW B | 1996年 / 53卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.53.5082

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A minimum of the magnetoresistance under low fields has been observed with a Co65Fe35/Ag/(Co65Fe35)(50)Gd-50 trilayer at 4.2 and 300 K. This negative spin-valve effect is explained by the scattering of the conduction electrons by the Co or Fe moments included in two different structures: a polycrystalline (Co65Fe35) and an amorphous one [(Co65Fe35)(50)Gd-50]. The Gd moments allow one to control the magnetic configuration of the transition-metal moments of the layers but are inefficient for the magnetoresistance. This interpretation is confirmed by measurements using high pulsed fields.

引用

页码：5082 / 5085

页数：4

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