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

Journal Article · Thu May 07 00:00:00 EDT 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4913632· OSTI ID:22410024

Chiba, Takahiro; Takahashi, Saburo ^[1]; Schreier, Michael ^[2]; Bauer, Gerrit E. W. ^[1]

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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)

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.

• OSTI ID: 22410024
• Journal Information: Journal of Applied Physics, Vol. 117, Issue 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

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