Microwave surface impedance of a nearly ferroelectric superconductor

Chien-Jang Wu, Chao Ming Fu, Tzong Jer Yang

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The intrinsic microwave surface impedance for a nearly ferroelectric superconducting film of finite thickness in the dielectric-like response is theoretically investigated. It is based on the electrodynamics of a nearly ferroelectric superconductor that incorporates the Maxwell's equations, the lattice equations for an ionic lattice, and the superconducting London equation as well. It is found that the surface resistance will be enhanced with decreasing the film thickness when the thickness is less than the London penetration depth. However it will begin to resonate as a function of film thickness at the thickness being more than one London penetration depth. The anomalous resonance peaks occur when the thickness equals the even multiple of the London penetration depth. In the frequency-dependent surface resistance, the number of the resonance peaks is strongly dependent on the film thickness, increasing with increasing the thickness. In addition, these peaks are not regularly spaced at a fixed interval. Discussion on this anomaly in the surface resistance will be given.

    Original languageEnglish
    Title of host publicationProgress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo
    PublisherElectromagnetics Academy
    Pages575-579
    Number of pages5
    ISBN (Print)9781629939513
    Publication statusPublished - 2006 Jan 1
    EventProgress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo - Tokyo, Japan
    Duration: 2006 Aug 22006 Aug 5

    Other

    OtherProgress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo
    CountryJapan
    CityTokyo
    Period06/8/206/8/5

    Fingerprint

    Surface resistance
    Superconducting materials
    Ferroelectric materials
    Film thickness
    Microwaves
    Ferroelectric films
    Superconducting films
    Electrodynamics
    Maxwell equations

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Electronic, Optical and Magnetic Materials

    Cite this

    Wu, C-J., Fu, C. M., & Yang, T. J. (2006). Microwave surface impedance of a nearly ferroelectric superconductor. In Progress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo (pp. 575-579). Electromagnetics Academy.

    Microwave surface impedance of a nearly ferroelectric superconductor. / Wu, Chien-Jang; Fu, Chao Ming; Yang, Tzong Jer.

    Progress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo. Electromagnetics Academy, 2006. p. 575-579.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Wu, C-J, Fu, CM & Yang, TJ 2006, Microwave surface impedance of a nearly ferroelectric superconductor. in Progress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo. Electromagnetics Academy, pp. 575-579, Progress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo, Tokyo, Japan, 06/8/2.
    Wu C-J, Fu CM, Yang TJ. Microwave surface impedance of a nearly ferroelectric superconductor. In Progress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo. Electromagnetics Academy. 2006. p. 575-579
    Wu, Chien-Jang ; Fu, Chao Ming ; Yang, Tzong Jer. / Microwave surface impedance of a nearly ferroelectric superconductor. Progress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo. Electromagnetics Academy, 2006. pp. 575-579
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