Giant magnetoresistance in Fe/Cr superlattices without bulk scattering

被引：20

作者：

Schad, R ^{[1
]}

Belien, P

Verbanck, G

Temst, K

Moshchalkov, VV

Bruynseraede, Y

Bahr, D

Falta, J

Dekoster, J

Langouche, G

机构：

[1] KU Nijmegen, Inst Mat Res, NL-6525 ED Nijmegen, Netherlands

[2] Katholieke Univ Leuven, Vaste Stof Fys Magnetisme Lab, B-3001 Louvain, Belgium

[3] DESY, Hamburger Synchrotronstrahlungslabor, D-22607 Hamburg, Germany

[4] Katholieke Univ Leuven, Inst Kern Stralenfisika, B-3001 Louvain, Belgium

来源：

EUROPHYSICS LETTERS | 1998年 / 44卷 / 03期

关键词：

D O I：

10.1209/epl/i1998-00482-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Giant Magnetoresistance (GMR) observed in magnetic multilayers is due to spin-dependent scattering of electrons at interfaces or bulk defects. In order to unambiguously separate these two possible contributions, we produced Fe/Cr superlattices with negligible bulk defects, thus providing only interface scattering. The vertical and lateral interface roughness parameters were quantitatively analysed using synchrotron X-ray diffraction and Conversion Electron Mossbauer Spectroscopy. The magnitude of the GMR effect depends on both the vertical roughness amplitude eta and the step density n(step). We find a linear increase of the Giant Magnetoresistance with eta x n(step).

引用

页码：379 / 385

页数：7

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