Spectral characteristics of time resolved magnonic spin Seebeck effect
arXiv:1509.04018 · doi:10.1063/1.4931701
Abstract
Spin Seebeck effect (SSE) holds promise for new spintronic devices with low-energy consumption. The underlying physics, essential for a further progress, is yet to be fully clarified. This study of the time resolved longitudinal SSE in the magnetic insulator yttrium iron garnet (YIG) concludes that a substantial contribution to the spin current stems from small wave-vector subthermal exchange magnons. Our finding is in line with the recent experiment by S. R. Boona and J. P. Heremans, Phys. Rev. B 90, 064421 (2014). Technically, the spin-current dynamics is treated based on the Landau-Lifshitz-Gilbert (LLG) equation also including magnons back-action on thermal bath, while the formation of the time dependent thermal gradient is described self-consistently via the heat equation coupled to the magnetization dynamics
5 pages, 5 figures
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Cited by in corpus (14)
- Thermoelectric generation based on spin Seebeck effects
- Thermal spin dynamics of yttrium iron garnet
- Origin of the thickness-dependent low-temperature enhancement of spin Seebeck effect in YIG films
- Spin Seebeck effect at microwave frequencies
- Thermally induced magnonic spin current, thermomagnonic torques and domain wall dynamics in the presence of Dzyaloshinskii-Moriya interaction
- Imaging Magnetization Structure and Dynamics in Ultrathin YIG/Pt Bilayers with High Sensitivity Using the Time-Resolved Longitudinal Spin Seebeck Effect
- Rectification of the spin Seebeck current in noncollinear antiferromagnets
- Probing thermal magnon current mediated by coherent magnon via nitrogen-vacancy centers in diamond
- Conversion of electronic to magnonic spin current at heavy-metal magnetic-insulator interface
- Thermoelastic enhancement of the magnonic spin Seebeck effect in thin films and bulk samples
- Swift thermal steering of domain walls in ferromagnetic MnBi stripes
- Influence of spin-orbit and spin-Hall effects on the spin Seebeck current beyond linear response
- Magnon dispersion and spin transport in CrCl bilayers under different strain-induced magnetic states
- Non-local magnon transconductance in extended magnetic insulating films.\\Part II: two-fluid behavior