Balancing interlayer dipolar interactions in multilevel patterned media with out-of-plane magnetic anisotropy

被引：19

作者：

Baltz, V. ^{[1
]}

Rodmacq, B. ^{[1
]}

Bollero, A. ^{[1
]}

Ferre, J. ^{[2
]}

Landis, S. ^{[3
]}

Dieny, B. ^{[1
]}

机构：

[1] CEA INAC, SPINTEC, CNRS, URA CEA 2512, F-38054 Grenoble, France

[2] CNRS, UMR 8502, Phys Solides Lab, F-91405 Orsay, France

[3] CEA LETI, F-38054 Grenoble, France

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 05期

关键词：

cobalt; coercive force; magnetic anisotropy; magnetic multilayers; magnetisation reversal; nanostructured materials; platinum; RKKY interaction; ruthenium; MULTILAYERS; ARRAYS;

D O I：

10.1063/1.3078523

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nanostructures consisting of a stack of two magnetic multilayers with out-of-plane anisotropy and distinct coercivities hold great promises in spintronics devices. Yet their miniaturization leads to interlayer dipolar coupling, which results in detrimental asymmetrical behaviors of magnetization reversal or even in the loss of intermediate antiparallel configuration. In this letter, we take advantage of Ruderman-Kittel-Kasuya-Yosida interactions in order to compensate for this coupling and restore symmetry. The study has been performed on an array of square dots of 200 nm lateral size, each dot consisting of two [Co/Pt] multilayers antiferromagnetically coupled through a thin Ru spacer.

引用

页数：3

共 17 条

[11] Microstructural origin of switching field distribution in patterned Co/Pd multilayer nanodots
Lau, J. W.
McMichael, R. D.
Chung, S. H.
Rantschler, J. O.
Parekh, V.
Litvinov, D.
[J]. APPLIED PHYSICS LETTERS, 2008, 92 (01)
[12] Current-induced magnetization reversal in nanopillars with perpendicular anisotropy
Mangin, S
Ravelosona, D
Katine, JA
Carey, MJ
Terris, BD
Fullerton, EE
[J]. NATURE MATERIALS, 2006, 5 (03) : 210 - 215
[13] The transition from longitudinal to perpendicular recording
Richter, H. J.
[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2007, 40 (09) : R149 - R177
[14] Nanofabricated and self-assembled magnetic structures as data storage media
Terris, BD
Thomson, T
[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2005, 38 (12) : R199 - R222
[15] Intrinsic distribution of magnetic anisotropy in thin films probed by patterned nanostructures
Thomson, T
Hu, G
Terris, BD
[J]. PHYSICAL REVIEW LETTERS, 2006, 96 (25)
[16] Magnetic domain structure and dynamics in interacting ferromagnetic stacks with perpendicular anisotropy
Wiebel, S.
Jamet, J. -P.
Vernier, N.
Mougin, A.
Ferre, J.
Baltz, V.
Rodmacq, B.
Dieny, B.
[J]. JOURNAL OF APPLIED PHYSICS, 2006, 100 (04)
[17] Perpendicular anisotropy dependence of oscillatory interlayer coupling behavior in [Pt/Co]5/Ru/[Co/Pt]5 multilayers
Zhao, J.
Wang, Y. J.
Liu, Y. Z.
Han, X. F.
Zhang, Z.
[J]. JOURNAL OF APPLIED PHYSICS, 2008, 104 (02)

← 1 2 →