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Title: Spectral shape deformation in inverse spin Hall voltage in Y{sub 3}Fe{sub 5}O{sub 12}|Pt bilayers at high microwave power levels

Abstract

We report on the deformation of microwave absorption spectra and of the inverse spin Hall voltage signals in thin film bilayers of yttrium iron garnet (YIG) and platinum at high microwave power levels in a 9.45-GHz TE{sub 011} cavity. As the microwave power increases from 0.15 to 200 mW, the resonance field shifts to higher values, and the initially Lorentzian spectra of the microwave absorption intensity as well as the inverse spin Hall voltage signals become asymmetric. The contributions from opening of the magnetization precession cone and heating of YIG cannot well reproduce the data. Control measurements of inverse spin Hall voltages on thin-film YIG|Pt systems with a range of line widths underscore the role of spin-wave excitations in spectral deformation.

Authors:
; ;  [1];  [1];  [2];  [2];  [2]
  1. Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)
  2. (Japan)
Publication Date:
OSTI Identifier:
22413128
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 7; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION; ABSORPTION SPECTRA; DEFORMATION; ELECTRIC POTENTIAL; EXCITATION; FERRITE GARNETS; GHZ RANGE; IRON OXIDES; LAYERS; LINE WIDTHS; MAGNETIZATION; MICROWAVE RADIATION; PLATINUM; RESONANCE; SPIN; SPIN WAVES; THIN FILMS; YTTRIUM COMPOUNDS

Citation Formats

Lustikova, J., E-mail: lustikova@imr.tohoku.ac.jp, Shiomi, Y., Handa, Y., Saitoh, E., WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, CREST, Japan Science and Technology Agency, Tokyo 102-0076, and Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195. Spectral shape deformation in inverse spin Hall voltage in Y{sub 3}Fe{sub 5}O{sub 12}|Pt bilayers at high microwave power levels. United States: N. p., 2015. Web. doi:10.1063/1.4908211.
Lustikova, J., E-mail: lustikova@imr.tohoku.ac.jp, Shiomi, Y., Handa, Y., Saitoh, E., WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, CREST, Japan Science and Technology Agency, Tokyo 102-0076, & Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195. Spectral shape deformation in inverse spin Hall voltage in Y{sub 3}Fe{sub 5}O{sub 12}|Pt bilayers at high microwave power levels. United States. doi:10.1063/1.4908211.
Lustikova, J., E-mail: lustikova@imr.tohoku.ac.jp, Shiomi, Y., Handa, Y., Saitoh, E., WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, CREST, Japan Science and Technology Agency, Tokyo 102-0076, and Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195. Sat . "Spectral shape deformation in inverse spin Hall voltage in Y{sub 3}Fe{sub 5}O{sub 12}|Pt bilayers at high microwave power levels". United States. doi:10.1063/1.4908211.
@article{osti_22413128,
title = {Spectral shape deformation in inverse spin Hall voltage in Y{sub 3}Fe{sub 5}O{sub 12}|Pt bilayers at high microwave power levels},
author = {Lustikova, J., E-mail: lustikova@imr.tohoku.ac.jp and Shiomi, Y. and Handa, Y. and Saitoh, E. and WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577 and CREST, Japan Science and Technology Agency, Tokyo 102-0076 and Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195},
abstractNote = {We report on the deformation of microwave absorption spectra and of the inverse spin Hall voltage signals in thin film bilayers of yttrium iron garnet (YIG) and platinum at high microwave power levels in a 9.45-GHz TE{sub 011} cavity. As the microwave power increases from 0.15 to 200 mW, the resonance field shifts to higher values, and the initially Lorentzian spectra of the microwave absorption intensity as well as the inverse spin Hall voltage signals become asymmetric. The contributions from opening of the magnetization precession cone and heating of YIG cannot well reproduce the data. Control measurements of inverse spin Hall voltages on thin-film YIG|Pt systems with a range of line widths underscore the role of spin-wave excitations in spectral deformation.},
doi = {10.1063/1.4908211},
journal = {Journal of Applied Physics},
number = 7,
volume = 117,
place = {United States},
year = {Sat Feb 21 00:00:00 EST 2015},
month = {Sat Feb 21 00:00:00 EST 2015}
}