Current-Induced Transverse Spin-Wave Instability in a Thin Nanomagnet

2003/04/30 by M. L. Polianski, Piet W. Brouwer, P. W. Brouwer · 7 citations
Physics and Astronomy · #Magnetic properties of thin films #Quantum and electron transport phenomena #Surface and Thin Film Phenomena #cond-mat.mes-hall #cond-mat.mtrl-sci

paper · pdf · doi:10.1103/physrevlett.92.026602

published as Phys. Rev. Lett. 92, 026602 (2004) · 4 pages, 2 figures

arxiv created 2003/11/20 · openalex publication_date 2004/01/16 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We show that an unpolarized electric current incident perpendicular to the plane of a thin ferromagnet can excite a spin-wave instability transverse to the current direction if source and drain contacts are not symmetric. The instability, which is driven by the current-induced "spin-transfer torque," exists for one current direction only.

Citations

• Current-driven excitation of magnetic multilayers

Cited by

• Current-induced macrospin versus spin-wave excitations in spin valves
• Influence of a uniform current on collective magnetization dynamics in a ferromagnetic metal
• Spin transfer by spin injection between both interfaces of a Ni nanowire
• Current-induced magnetization reversal in SrRuO<mml:mrow/>3
• Current driven tri-stable resistance states in magnetic point contacts
• Current-induced magnetization dynamics in current perpendicular to the plane spin valves
• Current-induced transverse spin-wave instability in thin ferromagnets: Beyond linear stability analysis