Resonant magneto-acoustic switching: influence of Rayleigh wave frequency and wavevector

被引：28

作者：

Kuszewski, P. ^{[1
]}

Camara, I. S. ^{[1
]}

Biarrotte, N. ^{[1
]}

Becerra, L. ^{[1
]}

von Bardeleben, J. ^{[1
]}

Torres, W. Savero ^{[2
]}

Lemaitre, A. ^{[3
]}

Gourdon, C. ^{[1
]}

Duquesne, J-Y ^{[1
]}

Thevenard, L. ^{[1
]}

机构：

[1] Sorbonne Univ, CNRS, Inst Nanosci Paris UMR 7588, 4 Pl Jussieu, F-75252 Paris, France

[2] Univ Paris Sud, Lab Phys Solides, CNRS, Bat 510, F-91405 Orsay, France

[3] Univ Paris Sud, Univ Paris Saclay, Ctr Nanosci & Nanotechnol, CNRS, F-91460 Marcoussis, France

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2018年 / 30卷 / 24期

关键词：

magnetoacoustics; processional switching; surface acoustic waves; magnetic patterning; Kerr microscopy; magnetic semiconductor; MAGNETIZATION REVERSAL; DRIVEN; PULSES;

D O I：

10.1088/1361-648X/aac152

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We show on in-plane magnetized thin films that magnetization can be switched efficiently by 180 degrees using large amplitude Rayleigh waves travelling along the hard or easy magnetic axis. Large characteristic filament-like domains are formed in the latter case. Micromagnetic simulations clearly confirm that this multi-domain configuration is compatible with a resonant precessional mechanism. The reversed domains are in both geometries several hundreds of mu m(2), much larger than has been shown using spin transfer torque- or field-driven precessional switching. We show that surface acoustic waves can travel at least 1 mm before addressing a given area, and can interfere to create magnetic stripes that can be positioned with a submicronic precision.

引用

页数：10

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