Controlling the chirality and polarity of vortices in magnetic tunnel junctions

被引：28

作者：

Jenkins, A. S. ^{[1
,2
,3
]}

Grimaldi, E. ^{[1
,2
]}

Bortolotti, P. ^{[1
,2
]}

Lebrun, R. ^{[1
,2
]}

Kubota, H. ^{[4
]}

Yakushiji, K. ^{[4
]}

Fukushima, A. ^{[4
]}

de Loubens, G. ^{[3
]}

Klein, O. ^{[3
]}

Yuasa, S. ^{[4
]}

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

机构：

[1] CNRS Thales, Unite Mixte Phys, Palaiseau, France

[2] Univ Paris 11, Palaiseau, France

[3] CEA Saclay, CNRS URA 2464, Serv Phys Etat Condense, F-91191 Gif Sur Yvette, France

[4] Inst Adv Ind Sci & Technol AIST, Spintron Res Ctr, Tsukuba, Ibaraki, Japan

来源：

APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 17期

关键词：

VORTEX CORE REVERSAL; EXCITATION; DRIVEN;

D O I：

10.1063/1.4900743

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Static and dynamic control of the chirality and polarity of a magnetic vortex confined in a magnetic tunnel junction is demonstrated. The modes associated with the four chirality/polarity vortex configurations are first explored by resonant excitation with a low power rf current. When the rf power is increased, both the chirality and polarity of the vortex can be resonantly switched, which-as shown by micromagnetic simulations-involves vortex expulsion and renucleation. This tunable resonant switching of the vortex parameters are an exciting step forward for the viability of magnetic vortex-based applications. (C) 2014 AIP Publishing LLC.

引用

页数：5

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