Ferromagnetic resonance induced Josephson current in a superconductor/ ferromagnet/superconductor junction

Shin Ichi Hikino, Michiyasu Mori, Saburo Takahashi, Sadamichi Maekawa

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14 Citations (Scopus)

Abstract

We propose the phase dynamics induced by spin waves in a superconductor/ferromagnet/superconductor (SC/FM/SC) Josephson junction. The resistively shunted junction (RSJ) model, which describes the dynamics of superconducting phase difference, is extended to include the spin wave excitation by ferromagnetic resonance (FMR) using the gauge invariant phase difference between two s-wave superconductors. The current-voltage characteristics show step structures when the magnetization in FM is driven by tuning the microwave frequency to FMR in the SC/FM/SC junction. The result presents a new route to observe the spin wave excitation using the Josephson effect.

Original languageEnglish
Article number053707
Journaljournal of the physical society of japan
Volume77
Issue number5
DOIs
Publication statusPublished - 2008 May

Keywords

  • FMR
  • Ferromagnet
  • Josephson junction
  • RSJ model
  • Superconductor

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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