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Title: Acoustic spin pumping in magnetoelectric bulk acoustic wave resonator

Abstract

We present the generation and detection of spin currents by using magnetoelastic resonance excitation in a magnetoelectric composite high overtone bulk acoustic wave (BAW) resonator (HBAR) formed by a Al-ZnO-Al-GGG-YIG-Pt structure. Transversal BAW drives magnetization oscillations in YIG film at a given resonant magnetic field, and the resonant magneto-elastic coupling establishes the spin-current generation at the Pt/YIG interface. Due to the inverse spin Hall effect (ISHE) this BAW-driven spin current is converted to a dc voltage in the Pt layer. The dependence of the measured voltage both on magnetic field and frequency has a resonant character. The voltage is determined by the acoustic power in HBAR and changes its sign upon magnetic field reversal. We compare the experimentally observed amplitudes of the ISHE electrical field achieved by our method and other approaches to spin current generation that use surface acoustic waves and microwave resonators for ferromagnetic resonance excitation, with the theoretically expected values.

Authors:
; ; ; ;  [1]
  1. Kotel’nikov Institute of Radio Engineering and Electronics of Russian Academy of Sciences, Mokhovaya 11, building 7, Moscow, 125009 (Russian Federation)
Publication Date:
OSTI Identifier:
22611772
Resource Type:
Journal Article
Journal Name:
AIP Advances
Additional Journal Information:
Journal Volume: 6; Journal Issue: 5; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 2158-3226
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; DETECTION; ELECTRIC FIELDS; ELECTRICAL PROPERTIES; FERRITE GARNETS; FERROMAGNETIC RESONANCE; FILMS; HALL EFFECT; INTERFACES; IRON OXIDES; LAYERS; MAGNETIC FIELD REVERSAL; MAGNETIC FIELDS; MAGNETIC PROPERTIES; MAGNETIZATION; MICROWAVE RADIATION; OSCILLATIONS; RESONATORS; SOUND WAVES; SURFACES; ZINC OXIDES

Citation Formats

Polzikova, N. I., E-mail: polz@cplire.ru, Alekseev, S. G., Pyataikin, I. I., Kotelyanskii, I. M., Luzanov, V. A., and Orlov, A. P. Acoustic spin pumping in magnetoelectric bulk acoustic wave resonator. United States: N. p., 2016. Web. doi:10.1063/1.4943765.
Polzikova, N. I., E-mail: polz@cplire.ru, Alekseev, S. G., Pyataikin, I. I., Kotelyanskii, I. M., Luzanov, V. A., & Orlov, A. P. Acoustic spin pumping in magnetoelectric bulk acoustic wave resonator. United States. https://doi.org/10.1063/1.4943765
Polzikova, N. I., E-mail: polz@cplire.ru, Alekseev, S. G., Pyataikin, I. I., Kotelyanskii, I. M., Luzanov, V. A., and Orlov, A. P. 2016. "Acoustic spin pumping in magnetoelectric bulk acoustic wave resonator". United States. https://doi.org/10.1063/1.4943765.
@article{osti_22611772,
title = {Acoustic spin pumping in magnetoelectric bulk acoustic wave resonator},
author = {Polzikova, N. I., E-mail: polz@cplire.ru and Alekseev, S. G. and Pyataikin, I. I. and Kotelyanskii, I. M. and Luzanov, V. A. and Orlov, A. P.},
abstractNote = {We present the generation and detection of spin currents by using magnetoelastic resonance excitation in a magnetoelectric composite high overtone bulk acoustic wave (BAW) resonator (HBAR) formed by a Al-ZnO-Al-GGG-YIG-Pt structure. Transversal BAW drives magnetization oscillations in YIG film at a given resonant magnetic field, and the resonant magneto-elastic coupling establishes the spin-current generation at the Pt/YIG interface. Due to the inverse spin Hall effect (ISHE) this BAW-driven spin current is converted to a dc voltage in the Pt layer. The dependence of the measured voltage both on magnetic field and frequency has a resonant character. The voltage is determined by the acoustic power in HBAR and changes its sign upon magnetic field reversal. We compare the experimentally observed amplitudes of the ISHE electrical field achieved by our method and other approaches to spin current generation that use surface acoustic waves and microwave resonators for ferromagnetic resonance excitation, with the theoretically expected values.},
doi = {10.1063/1.4943765},
url = {https://www.osti.gov/biblio/22611772}, journal = {AIP Advances},
issn = {2158-3226},
number = 5,
volume = 6,
place = {United States},
year = {Sun May 15 00:00:00 EDT 2016},
month = {Sun May 15 00:00:00 EDT 2016}
}