Modified dispersion law for spin waves coupled to a superconductor

I. A. Golovchanskiy, N. N. Abramov, V. S. Stolyarov, V. V. Ryazanov, A. A. Golubov, A. V. Ustinov

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)
28 Downloads (Pure)

Abstract

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.

Original languageEnglish
Article number233903
JournalJournal of Applied Physics
Volume124
Issue number23
DOIs
Publication statusPublished - 21 Dec 2018

Fingerprint Dive into the research topics of 'Modified dispersion law for spin waves coupled to a superconductor'. Together they form a unique fingerprint.

Cite this