Shape and thickness effects on the magnetization reversal of Py/Cu/Co nanostructures

被引：15

作者：

Bonanni, V. ^{[1
,2
]}

Bisero, D. ^{[1
,2
]}

Vavassori, P. ^{[1
,2
,3
]}

Gubbiotti, G. ^{[4
]}

Madami, M. ^{[4
]}

Adeyeye, A. O. ^{[5
]}

Goolaup, S. ^{[5
]}

Singh, N. ^{[5
]}

Ono, T. ^{[6
]}

Spezzani, C. ^{[7
]}

机构：

[1] Univ Ferrara, CNISM, CNR, INFM S3, I-44100 Ferrara, Italy

[2] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy

[3] CIC NanoGUNE Consolider, San Sebastian, Spain

[4] Univ Perugia, CNISM, Dipartimento Fis, I-06100 Perugia, Italy

[5] Natl Univ Singapore, Dept Elect & Comp Engn, Informat Storage Mat Lab, Singapore 117576, Singapore

[6] Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan

[7] Sincrotrone Trieste SCpA, Trieste, Italy

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2009年 / 321卷 / 19期

关键词：

Magnetic properties of nanostructure; Magnetization reversal; Magnetic multilayer;

D O I：

10.1016/j.jmmm.2009.04.080

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present an experimental investigation of the magnetization reversal in NiFe/Cu(10 nm)/Co circular and elliptical nano-elements with different thickness of the magnetic layers. The results obtained using element sensitive X-ray resonant magnetic scattering (XRMS) were compared with the previous measurements showing that the dipolar interlayer coupling favours the antiparallel alignment of the two magnetization layers at remanance. In the case of circular shape, the increased thickness of the ferromagnetic layers stabilizes the antiparallel alignment of the layers over a wider field range. A similar effect, accompanied by a delay in the onset of the antiparallel alignment, is observed in the case of elliptical nano-elements and applying the external field along the longer axis of the elements, due to the additional shape anisotropy. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：3038 / 3041

页数：4

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