Current-Driven Vortex Oscillations in Metallic Nanocontacts

2007/10/30 by Q. Mistral, M. van Kampen, G. Hrkac +7 · 3 citations
Physics and Astronomy · #Magnetic properties of thin films #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #cond-mat.mtrl-sci

paper · pdf · doi:10.1103/physrevlett.100.257201

4 pages, 3 figures

arxiv created 2007/10/30 · openalex publication_date 2008/06/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present experimental evidence of subgigahertz spin-transfer oscillations in metallic nanocontacts that are due to the translational motion of a magnetic vortex. The vortex is shown to execute large-amplitude orbital motion outside the contact region. Good agreement with analytical theory and micromagnetics simulations is found.

Citations

• Current-driven excitation of magnetic multilayers

Cited by

• Spin-torque-induced rotational dynamics of a magnetic vortex dipole
• Current driven tri-stable resistance states in magnetic point contacts
• Current-driven vortex oscillations in metallic nanocontacts: zero-field oscillations and training effects

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