Heat-induced damping modification in YIG/Pt hetero-structures
arXiv:1212.2073 · doi:10.1063/1.4792701
Abstract
We experimentally demonstrate the manipulation of magnetization relaxation utilizing a temperature difference across the thickness of an yttrium iron garnet/platinum (YIG/Pt) hetero-structure: the damping is either increased or decreased depending on the sign of the temperature gradient. This effect might be explained by a thermally-induced spin torque on the magnetization precession. The heat-induced variation of the damping is detected by microwave techniques as well as by a DC voltage caused by spin pumping into the adjacent Pt layer and the subsequent conversion into a charge current by the inverse spin Hall effect.
References in corpus (7)
- Spin Seebeck insulator
- Longitudinal Spin Seebeck Effect Free from the Proximity Nernst Effect
- Spin pumping by parametrically excited exchange magnons
- Electrical detection of spin pumping due to the precessing magnetization of a single ferromagnet
- Thermal spin pumping and magnon-phonon-mediated spin-Seebeck effect
- Direct detection of magnon spin transport by the inverse spin Hall effect
- Temporal behavior of the inverse spin Hall voltage in a magnetic insulator-nonmagnetic metal structure
Cited by in corpus (20)
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- Electronic control of the spin-wave damping in a magnetic insulator
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- Magnon-phonon interactions in magnon spintronics
- Interfacial Spin and Heat Transfer between Metals and Magnetic Insulators
- Large spin-wave bullet in a ferrimagnetic insulator driven by spin Hall effect
- Sign of inverse spin Hall voltages generated by ferromagnetic resonance and temperature gradients in yttrium iron garnet|platinum bilayers
- Spin-transfer torque based damping control of parametrically excited spin waves in a magnetic insulator
- Influence of interface condition on spin-Seebeck effects
- Thermally-driven spin torques in layered magnetic insulators
- Microwave-induced spin currents in ferromagnetic-insulator|normal-metal bilayer system
- Evidence for a Magnetic Seebeck effect
- Probing thermal magnon current mediated by coherent magnon via nitrogen-vacancy centers in diamond
- Control of magnetization dynamics by spin Nernst torque
- Spin Seebeck effect and ballistic transport of quasi-acoustic magnons in room-temperature yttrium iron garnet films
- Role of magnons and the size effect in heat transport through an insulating ferromagnet/insulator interface
- New pathways towards efficient metallic spin Hall spintronics
- Magnon instability driven by heat current in magnetic bilayers
- Damping of parametrically excited magnons in the presence of the longitudinal spin Seebeck effect