Modified dispersion law for spin waves coupled to a superconductorстатья
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Дата последнего поиска статьи во внешних источниках: 14 февраля 2019 г.
Аннотация:In this work, we consider dispersion laws of spin waves that propagate in a ferromagnet/superconductor
bilayer, specifically in a ferromagnetic film coupled inductively to a superconductor. The coupling is
viewed as an interaction of a spin wave in a ferromagnetic film with its mirrored image generated by
the superconductor. We show that, in general, the coupling enhances substantially the phase velocity of
magnons in in-plane spin wave geometries. In addition, a heavy nonreciprocity of the dispersion law is
observed in the magnetostatic surface spin wave geometry where the phase velocity depends on the
direction of the wave propagation.