Microwave surface impedance of a nearly ferroelectric superconductor

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

    研究成果: 書貢獻/報告類型會議論文篇章

    摘要

    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.

    原文英語
    主出版物標題Progress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo
    發行者Electromagnetics Academy
    頁面575-579
    頁數5
    ISBN(列印)9781629939513
    出版狀態已發佈 - 2006 一月 1
    事件Progress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo - Tokyo, 日本
    持續時間: 2006 八月 22006 八月 5

    其他

    其他Progress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo
    國家/地區日本
    城市Tokyo
    期間2006/08/022006/08/05

    ASJC Scopus subject areas

    • 電氣與電子工程
    • 電子、光磁材料

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