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Reconfigurable nanoscale spin-wave directional coupler using spin-orbit torque.

ABSTRACT: We present a reconfigurable nanoscale spin-wave directional coupler based on spin-orbit torque (SOT). By micromagnetic simulations, it is demonstrated that the functionality and operating frequency of proposed device can be dynamically switched by inverting the whole or part of the relative magnetic configuration of the dipolar-coupled waveguides using SOT. Utilizing the effect of sudden change in coupling length, the functionality of power divider can be realized. The proposed reconfigurable spin-wave directional coupler opens a way for two-dimensional planar magnonic integrated circuits.

SUBMITTER: Ren Z

PROVIDER: S-EPMC6506528 | biostudies-other | 2019 May

REPOSITORIES: biostudies-other

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Reconfigurable nanoscale spin-wave directional coupler using spin-orbit torque.

Ren Zhiwei Z Liu Shuang S Jin Lichuan L Wen Tianlong T Liao Yulong Y Tang Xiaoli X Zhang Huaiwu H Zhong Zhiyong Z

Scientific reports 20190508 1

We present a reconfigurable nanoscale spin-wave directional coupler based on spin-orbit torque (SOT). By micromagnetic simulations, it is demonstrated that the functionality and operating frequency of proposed device can be dynamically switched by inverting the whole or part of the relative magnetic configuration of the dipolar-coupled waveguides using SOT. Utilizing the effect of sudden change in coupling length, the functionality of power divider can be realized. The proposed reconfigurable sp ...[more]

PMID: 31068649

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