Abstract
We present experiments on photon-assisted tunneling and ac Josephson effect using microwaves in an energy range 1.05<hν<2.2 meV of the same order of magnitude as the superconducting gap 0.6<2Δ<4 meV. We show that, whereas the photon-assisted tunneling shows no anomaly in this region, the amplitude of the Josephson steps is strongly affected by the Riedel anomaly. Furthermore, the results under strong irradiations show an indirect evidence of a decrease of the gap value by the creation of quasiparticles.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
