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The temporal evolution of pulsed spin Hall effect-spin transfer torque (SHE-STT) driven auto-oscillations in a yttrium iron garnet (YIG)-platinum (Pt) microdisk is studied experimentally using time-resolved Brillouin light scattering spectroscopy. The frequency of the auto-oscillations is different in the center when compared to the edge of the disk and is related to the simultaneous STT excitation of a bullet and a non-localized spin-wave mode. Furthermore, the magnetization precession intensity saturates on a time scale of 20 ns or longer, depending on the current density. For this reason, our findings suggest that a proper ratio between the current and the pulse duration is of crucial importance for future STT-based devices.

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Lauer, Viktor -  Schneider, Michael -  Meyer, Thomas -  Bracher, Thomas -  Pirro, Philipp -  Heinz, Bjorn -  Heussner, Frank -  Lagel, Bert -  Hillebrands, Burkard -  Chumak, Andrii V. -  Onbasli, Mehmet Cengiz -  Ross, Caroline A - 

Id.: 70140383

Versión: 1.0

Estado: Final

Tipo de recurso: Article  -  http://purl.org/eprint/type/JournalArticle  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: Creative Commons Attribution-Noncommercial-Share Alike

Requerimientos técnicos:  Browser: Any - 

Relación: [IsBasedOn] arXiv
[References] http://dx.doi.org/10.1109/LMAG.2017.2661243
[References] IEEE Magnetics Letters

Fecha de contribución: 20-oct-2017


* 1949-307X
* 1949-3088
* Lauer, Viktor et al. “Temporal Evolution of Auto-Oscillations in an Yttrium-Iron-Garnet/Platinum Microdisk Driven by Pulsed Spin Hall Effect-Induced Spin-Transfer Torque.” IEEE Magnetics Letters 8 (2017): 1–4. © 2017 EU

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