Microwave spin-torque excitation in a template-synthesized nanomagnet

被引：20

作者：

Biziere, N. ^{[1
]}

Mure, E. ^{[1
]}

Ansermet, J. -Ph. ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Inst Phys Nanostruct, CH-1015 Lausanne, Switzerland

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 01期

关键词：

electrical contacts; nanotechnology; spin dynamics; spin polarised transport; spin valves; MAGNETIC TUNNEL-JUNCTIONS; POLARIZED CURRENT; NANOWIRES; DRIVEN; MULTILAYERS; REVERSAL;

D O I：

10.1103/PhysRevB.79.012404

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A microwave-compatible lithography-free process is shown to allow the electrical contact of a single nanometric spin valve grown by template synthesis. The complex spin dynamics of a single nanomagnet is revealed by resonant microwave current excitations, detected electrically in the V(dc) and second-harmonic voltages. The uniform modes are attributed to spin transfer torque effects, whereas the effect of oersted field may play a role in exciting the nonuniform modes.

引用

页数：4

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