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MA: Fachverband Magnetismus

MA 42: Posters Magnetism I

MA 42.3: Poster

Mittwoch, 18. März 2020, 15:00–18:00, P3

Bridging magnonics and spin-orbitronics — •Boris Divinskiy¹, Vladislav E. Demidov¹, Sergei Urazhdin², and Sergej O. Demokritov¹ — ¹University of Münster, Münster, Germany — ²Emory University, Atlanta, USA

The emerging field of nano-magnonics utilizes high-frequency waves of magnetization - the spin waves - for the transmission and processing of information on the nanoscale. The advent of spin-transfer torque has spurred significant advances in nano-magnonics, by enabling highly efficient local spin-wave generation in magnonic nanodevices. Furthermore, the recent emergence of spin-orbitronics, which utilizes spin-orbit interaction as the source of spin torque, has provided a unique ability to exert spin torque over spatially extended areas of magnonic structures, enabling enhanced spin-wave transmission. Here, we experimentally demonstrate that these advances can be efficiently combined. We utilize the same spin-orbit torque mechanism for the generation of propagating spin waves, and for the long-range enhancement of their propagation, in a single integrated nano-magnonic device. The demonstrated system exhibits a controllable directional asymmetry of spin wave emission, which is highly beneficial for applications in non-reciprocal magnonic logic and neuromorphic computing.

References:

[1] B. Divinskiy et al., Adv. Mater. 1802837 (2018)