FMR induced Josephson Current in a Superconductor/Ferromagnet/Superconductor Junction

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.

11pages, 3 figures

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Cited by in corpus (10)

• Implementation of superconductor-ferromagnet-superconductor pi-shifters in superconducting digital and quantum circuits
• Magnetic moment manipulation by a Josephson current
• Ferromagnetic Josephson junction with precessing magnetization
• Interaction of Josephson and magnetic oscillations in Josephson tunnel junctions with a ferromagnetic layer
• Tuning odd triplet superconductivity by spin pumping
• Composite excitation of Josephson phase and spin waves in Josephson junctions with ferromagnetic insulator
• Possible method to observe breathing mode of magnetic domain wall in Josephson junction
• Zero-Field Fiske Resonance Coupled with Spin-waves in Ferromagnetic Josephson Junctions
• Half-integer Shapiro-steps in superconducting qubit with a $\pi$-Josephson junction
• Sign reversal of ac Josephson current in a ferromagnetic Josephson junction