Ferromagnet/Superconductor Hybridization for Magnonic Applications

Igor A. Golovchanskiy* (Corresponding Author), Nikolay N. Abramov, Vasily S. Stolyarov, Vitaly V. Bolginov, Valery V. Ryazanov, Alexander A. Golubov, Alexey V. Ustinov

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

10 Citations (Scopus)

Abstract

In this work, a new hybridization of superconducting and ferromagnetic orders is demonstrated, promising for magnonics. By measuring the ferromagnetic and spin wave resonance absorption spectra of a magnetostatically coupled permalloy/niobium bilayer at different temperatures, magnetostatic spin wave resonances with unconventional dispersion are observed. The mechanism behind the modified dispersion, confirmed with micromagnetic simulations, implies screening of the alternating magnetostatic stray fields of precessing magnetic moments in the ferromagnetic layer by the superconducting surface in the Meissner state.

Original languageEnglish
Article number1802375
JournalAdvanced functional materials
Volume28
Issue number33
Early online date22 Jun 2018
DOIs
Publication statusPublished - 15 Aug 2018

Keywords

  • UT-Hybrid-D
  • magnonics
  • spin waves
  • superconducting Meissner state
  • superconductor/ferromagnet hybrids
  • ferromagnetic resonance

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    Golovchanskiy, I. A., Abramov, N. N., Stolyarov, V. S., Bolginov, V. V., Ryazanov, V. V., Golubov, A. A., & Ustinov, A. V. (2018). Ferromagnet/Superconductor Hybridization for Magnonic Applications. Advanced functional materials, 28(33), [1802375]. https://doi.org/10.1002/adfm.201802375