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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

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