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Title: Current-induced spin torque resonance of magnetic insulators affected by field-like spin-orbit torques and out-of-plane magnetizations

Abstract

The spin-torque ferromagnetic resonance (ST-FMR) in a bilayer system consisting of a magnetic insulator such as Y{sub 3}Fe{sub 5}O{sub 12} and a normal metal with spin-orbit interaction such as Pt is addressed theoretically. We model the ST-FMR for all magnetization directions and in the presence of field-like spin-orbit torques based on the drift-diffusion spin model and quantum mechanical boundary conditions. ST-FMR experiments may expose crucial information about the spin-orbit coupling between currents and magnetization in the bilayers.

Authors:
;  [1];  [2];  [1];  [3];  [4]
  1. Institute for Materials Research, Tohoku University, Sendai, Miyagi 980-8577 (Japan)
  2. Walther-Meissner-Institut, Bayerische Akademie der Wissenschaften, Walther-Meissner-Strasse 8, 85748 Garching (Germany)
  3. (Japan)
  4. (Netherlands)
Publication Date:
OSTI Identifier:
22410024
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 17; 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; BOUNDARY CONDITIONS; DIFFUSION; ELECTRIC CURRENTS; FERRITES; FERROMAGNETIC RESONANCE; LAYERS; L-S COUPLING; MAGNETIZATION; PLATINUM; QUANTUM MECHANICS; SPIN; TORQUE; YTTRIUM COMPOUNDS

Citation Formats

Chiba, Takahiro, E-mail: t.chiba@imr.tohoku.ac.jp, Takahashi, Saburo, Schreier, Michael, Bauer, Gerrit E. W., WPI-AIMR, Tohoku University, Sendai, Miyagi 980-8577, and Kavli Institute of NanoScience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft. Current-induced spin torque resonance of magnetic insulators affected by field-like spin-orbit torques and out-of-plane magnetizations. United States: N. p., 2015. Web. doi:10.1063/1.4913632.
Chiba, Takahiro, E-mail: t.chiba@imr.tohoku.ac.jp, Takahashi, Saburo, Schreier, Michael, Bauer, Gerrit E. W., WPI-AIMR, Tohoku University, Sendai, Miyagi 980-8577, & Kavli Institute of NanoScience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft. Current-induced spin torque resonance of magnetic insulators affected by field-like spin-orbit torques and out-of-plane magnetizations. United States. doi:10.1063/1.4913632.
Chiba, Takahiro, E-mail: t.chiba@imr.tohoku.ac.jp, Takahashi, Saburo, Schreier, Michael, Bauer, Gerrit E. W., WPI-AIMR, Tohoku University, Sendai, Miyagi 980-8577, and Kavli Institute of NanoScience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft. Thu . "Current-induced spin torque resonance of magnetic insulators affected by field-like spin-orbit torques and out-of-plane magnetizations". United States. doi:10.1063/1.4913632.
@article{osti_22410024,
title = {Current-induced spin torque resonance of magnetic insulators affected by field-like spin-orbit torques and out-of-plane magnetizations},
author = {Chiba, Takahiro, E-mail: t.chiba@imr.tohoku.ac.jp and Takahashi, Saburo and Schreier, Michael and Bauer, Gerrit E. W. and WPI-AIMR, Tohoku University, Sendai, Miyagi 980-8577 and Kavli Institute of NanoScience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft},
abstractNote = {The spin-torque ferromagnetic resonance (ST-FMR) in a bilayer system consisting of a magnetic insulator such as Y{sub 3}Fe{sub 5}O{sub 12} and a normal metal with spin-orbit interaction such as Pt is addressed theoretically. We model the ST-FMR for all magnetization directions and in the presence of field-like spin-orbit torques based on the drift-diffusion spin model and quantum mechanical boundary conditions. ST-FMR experiments may expose crucial information about the spin-orbit coupling between currents and magnetization in the bilayers.},
doi = {10.1063/1.4913632},
journal = {Journal of Applied Physics},
number = 17,
volume = 117,
place = {United States},
year = {Thu May 07 00:00:00 EDT 2015},
month = {Thu May 07 00:00:00 EDT 2015}
}