Cavity Mediated Manipulation of Distant Spin Currents Using a Cavity-Magnon-Polariton

Lihui Bai, Michael Harder, Paul Hyde, Zhaohui Zhang, Can-Ming Hu, Y. P. Chen, and John Q. Xiao
Phys. Rev. Lett. 118, 217201 – Published 25 May 2017

Abstract

Using electrical detection of a strongly coupled spin-photon system comprised of a microwave cavity mode and two magnetic samples, we demonstrate the long distance manipulation of spin currents. This distant control is not limited by the spin diffusion length, instead depending on the interplay between the local and global properties of the coupled system, enabling systematic spin current control over large distance scales (several centimeters in this work). This flexibility opens the door to improved spin current generation and manipulation for cavity spintronic devices.

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  • Received 16 January 2017

DOI:https://doi.org/10.1103/PhysRevLett.118.217201

© 2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Lihui Bai*, Michael Harder, Paul Hyde, Zhaohui Zhang, and Can-Ming Hu

  • Department of Physics and Astronomy, University of Manitoba, Winnipeg, Canada R3T 2N2

Y. P. Chen and John Q. Xiao

  • Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA

  • *bai@physics.umanitoba.ca

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Vol. 118, Iss. 21 — 26 May 2017

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