Microwave response of a nearly ferroelectric superconductor

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Abstract

Microwave response of a nearly ferroelectric superconductor is theoretically investigated based on the electrodynamics of nearly ferroelectric superconductors. Microwave response is studied via the calculations of the microwave surface impedances for three model structures in which dielectriclike superconductors are considered. Firstly, the calculated intrinsic surface impedance for a bulk material occupying the half space decreases with increasing frequency. Secondly, the calculated intrinsic surface resistance for a superconductor film of a finite thickness shows some anomalous resonance peaks. The distribution of these sharp peaks is strongly dependent on the film thickness. Discussion of these comblike peaks is also given. Finally, we calculate the effective microwave surface impedance of a superconductor/ dielectric layered system. The substrate resonance behavior in the surface resistance will be illustrated and discussed.

Original languageEnglish
Article number063908
JournalJournal of Applied Physics
Volume100
Issue number6
DOIs
Publication statusPublished - 2006 Oct 9

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microwaves
impedance
half spaces
electrodynamics
film thickness

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Microwave response of a nearly ferroelectric superconductor. / Wu, Chien-Jang.

In: Journal of Applied Physics, Vol. 100, No. 6, 063908, 09.10.2006.

Research output: Contribution to journalArticle

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