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arXiv · 1807.09976

Emission of coherent propagating magnons by insulator-based spin-orbit torque oscillators

M. Evelt·L. Soumah·A. B. Rinkevich·S. O. Demokritov·A. Anane·V. Cros·Jamal Ben Youssef·G. de Loubens·O. Klein·P. Bortolotti·V. E. Demidov
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Abstract

We experimentally demonstrate generation of coherent propagating magnons in ultra-thin magnetic-insulator films by spin-orbit torque induced by dc electric current. We show that this challenging task can be accomplished by utilizing magnetic-insulator films with large perpendicular magnetic anisotropy. We demonstrate simple and flexible spin-orbit torque devices, which can be used as highly efficient nanoscale sources of coherent propagating magnons for insulator-based spintronic applications.

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M. Evelt, L. Soumah, A. B. Rinkevich, S. O. Demokritov, A. Anane, V. Cros, Jamal Ben Youssef, G. de Loubens, O. Klein, P. Bortolotti, V. E. Demidov. 2018-07-26. Emission of coherent propagating magnons by insulator-based spin-orbit torque oscillators. https://doi.org/10.1103/physrevapplied.10.041002

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