Electrical spectroscopy of the spin-wave dispersion and bistability in gallium-doped yttrium iron garnet
Joris J. Carmiggelt,
Olaf C. Dreijer,
Carsten Dubs
et al.
Abstract:Yttrium iron garnet (YIG) is a magnetic insulator with record-low damping, allowing spinwave transport over macroscopic distances. Doping YIG with gallium ions greatly reduces the demagnetizing field and introduces a perpendicular magnetic anisotropy, which leads to an isotropic spin-wave dispersion that facilitates spin-wave optics and spin-wave steering. Here, we characterize the dispersion of a gallium-doped YIG (Ga:YIG) thin film using electrical spectroscopy. We determine the magnetic anisotropy parameter… Show more
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