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Frequency dependence of the longitudinal spin Seebeck effect
2018
Physical review B
The spin Seebeck effect provides an easy way to create and manipulate spin current. Schreier et al. experimentally observed a decrease of spin Seebeck voltage at high frequencies in the yttrium iron garnet/Pt system [Phys. Rev. B 93, 224430 (2016)]. The frequency dependence was attributed to the magnon spectrum. Here we provide a different explanation using the frequency dependence of the ac spin current. By combining a phenomenological two-temperature model with the ac-temperature method, our
doi:10.1103/physrevb.98.144408
fatcat:rfm4uayxhjg5lofzjifrq3muua