Current-induced transverse spin-wave instability in a thin nanomagnet
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 to...
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Veröffentlicht in: | Physical review letters 2004-01, Vol.92 (2), p.026602-026602 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | 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. |
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ISSN: | 0031-9007 |
DOI: | 10.1103/PhysRevLett.92.026602 |