Control of interlayer exchange coupling in Fe/Cr/Fe trilayers by ion beam irradiation

被引：58

作者：

Demokritov, SO ^{[1
]}

Bayer, C

Poppe, S

Rickart, M

Fassbender, J

Hillebrands, B

Kholin, DI

Kreines, NM

Liedke, OM

机构：

[1] Univ Kaiserslautern, Fachbereich Phys, D-67663 Kaiserslautern, Germany

[2] Russian Acad Sci, Inst Phys Problems, Moscow 117334, Russia

[3] Univ Bialystok, Inst Expt Phys, Bialystok, Poland

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.90.097201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The manipulation of the antiferromagnetic interlayer coupling in epitaxial Fe/Cr/Fe(001) trilayers by 5 keV He ion beam irradiation has been investigated. It is shown that even for irradiation with low fluences a drastic change in strength of the coupling appears. For thin Cr spacers (below 0.6-0.7 nm) it decreases with fluence, becoming ferromagnetic for fluences above 2x10(14) ions/cm(2). The effect is connected with the creation of magnetic bridges in the layered system due to atomic exchange events caused by the bombardment. For thicker Cr spacers an enhancement of the antiferromagnetic coupling strength is found. A possible explanation of the enhancement effect is given.

引用

页数：4

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