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.
https://hal-cea.archives-ouvertes.fr/cea-01935392
Contributor : Dominique Girard
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Submitted on : Monday, November 26, 2018 - 4:14:53 PM
Last modification on : Thursday, April 4, 2019 - 9:44:02 AM
Long-term archiving on : Wednesday, February 27, 2019 - 3:05:48 PM
M. Evelt, L. Soumah, A. Rinkevich, O. Demokritov, A. Anane, et al.. Emission of coherent propagating magnons by insulator-based spin-orbit torque oscillators. Physical Review Applied, American Physical Society, 2018, 10, pp.041002. ⟨10.1103/PhysRevApplied.10.041002⟩. ⟨cea-01935392⟩
