Rapid Domain Wall Motion in Permalloy Nanowires Excited by a Spin-Polarized Current Applied Perpendicular to the Nanowire

被引：65

作者：

Boone, C. T. ^{[1
]}

Katine, J. A. ^{[2
]}

Carey, M. ^{[2
]}

Childress, J. R. ^{[2
]}

Cheng, X. ^{[1
]}

Krivorotov, I. N. ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[2] Hitachi Global Storage Technol, San Jose, CA 95135 USA

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.104.097203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study domain wall dynamics in Permalloy nanowires excited by alternating spin-polarized current applied perpendicular to the nanowire. Spin torque ferromagnetic resonance measurements reveal that domain wall oscillations at a pinning site in the nanowire can be excited with velocities as high as 800 m/s at current densities below 10(7) A/cm(2).

引用

页数：4

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