Intrinsic and effective microwave surface impedances of thin superconducting films in DC magnetic field

Chien Jang Wu, Yu Sheng Tsai, Yi Jing Hsieh, Zhi Juan Chang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The intrinsic and effective microwave surface impedances for a thin type-II superconducting film in the low and parallel DC magnetic field are calculated. We consider the case where the thickness of superconducting thin-film, d, is less than the penetration depth, λL, and a row of vortices is present in the center plane of film. Firstly, we investigate the intrinsic surface impedance of a thin-film as a function of static field, film thickness, and radiation frequency as well. The contribution of the moving vortex chain to the intrinsic surface impedance will be numerically demonstrated. Next, we shall consider the resonant layered structure such as a superconducting thin-film deposited on a dielectric substrate and the resonant behavior in the effective surface resistance will then be examined in detail. The effect of vortex chain on the resonant phenomenon will be discussed and elucidated.

Original languageEnglish
Pages (from-to)161-168
Number of pages8
JournalPhysica C: Superconductivity and its applications
Volume406
Issue number3-4
DOIs
Publication statusPublished - 2004 Jul 15

Keywords

  • Mixed state
  • Penetration depth
  • Substrate resonance
  • Surface impedance

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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