GIANT MAGNETORESISTANCE IN FE CR SUPERLATTICES WITH VERY THIN FE LAYERS

被引：125

作者：

SCHAD, R

POTTER, CD

BELIEN, P

VERBANCK, G

MOSHCHALKOV, VV

BRUYNSERAEDE, Y

机构：

[1] Laboratorium voor Vaste-Stoffysika en Magnetisme, Katholieke Universiteit Leuven, B-3001 Leuven

来源：

APPLIED PHYSICS LETTERS | 1994年 / 64卷 / 25期

关键词：

D O I：

10.1063/1.111253

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Carefully tailored Fe/Cr epitaxial superlattices with extremely thin Fe layers have been grown on MgO(100) by molecular beam epitaxy. The low-angle x-ray spectra reveal the presence of sharp interfaces down to an Fe layer thickness of a few monolayers. An [Fe(4.5 angstrom)/Cr(12 angstrom)]50 superlattice shows a 220% magnetoresistance at 1.5 K, and a saturation field of 110 kOe. A further decrease of the Fe layer thickness produces a drastic decrease in the magnetoresistance.

引用

页码：3500 / 3503

页数：4

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