Voltage-Controlled Anisotropy and Current-Induced Magnetization Dynamics in Antiferromagnetic-Piezoelectric Layered Heterostructures

P.A. Popov, A.R. Safin, A. Kirilyuk, S.A. Nikitov, I. Lisenkov, V. Tyberkevich, and A. Slavin
Phys. Rev. Applied 13, 044080 – Published 30 April 2020

Abstract

It is shown theoretically that in a layered heterostructure comprising piezoelectric, dielectric antiferromagnetic crystal, and heavy metal (PZ/AFM/HM), it is possible to control the anisotropy of the AFM layer by applying a dc voltage across the PZ layer. In particular, we show that by varying the dc voltage across the heterostructure and/or the dc current in the HM, it is possible to vary the frequency of the antiferromagnetic resonance of the AFM in a passive (subcritical) regime and, also, to reduce the threshold of the current-induced terahertz-frequency generation. Our analysis also shows that, unfortunately, the voltage-induced reduction of the generation threshold leads to the proportional reduction of the amplitude of the terahertz-frequency signal generated in the active (supercritical) regime. The general results are illustrated by a calculation of the characteristics of experimentally realizable PZT-5H/NiO/Pt.

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  • Received 21 January 2020
  • Revised 19 February 2020
  • Accepted 31 March 2020
  • Corrected 17 November 2020

DOI:https://doi.org/10.1103/PhysRevApplied.13.044080

© 2020 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Corrections

17 November 2020

Correction: Typographical errors were found in Eq. (15), Eq. (16), and in the inline equation before Eq. (20) and have been fixed.

Authors & Affiliations

P.A. Popov1,2,*, A.R. Safin1,3,†, A. Kirilyuk1,4,5, S.A. Nikitov1,2,6, I. Lisenkov7, V. Tyberkevich8, and A. Slavin8

  • 1Kotel’nikov Institute of Radio-Engineering and Electronics of RAS, Moscow 125009, Russia
  • 2Moscow Institute of Physics and Technology, Dolgoprudny 141701, Moscow Region, Russia
  • 3Moscow Power Engineering Institute, Moscow 111250, Russia
  • 4Institute for Molecules and Materials, Radboud University, 6525 AJ Nijmegen, Netherlands
  • 5FELIX Laboratory, Radboud University, 6525 AJ Nijmegen, Netherlands
  • 6Laboratory “Metamaterials”, Saratov State University, Saratov 410012, Russia
  • 7Winchester Technologies LLC, Burlington, Massachusetts 01803, USA
  • 8Department of Physics, Oakland University, Rochester, Michigan 48309-4479, USA

  • *paavali.popov@gmail.com
  • arsafin@gmail.com

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Vol. 13, Iss. 4 — April 2020

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