標題: Effective microwave surface impedance of superconducting films in the mixed state
作者: Wu, CJ
Tseng, TY
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: microwave surface impedance;mixed state;resonant phenomenon;superconducting films
公開日期: 1-五月-1997
摘要: The effective microwave surface impedance of mulitilayer structures made of high-ir, superconducting films in the mixed state, lossy dielectrics, and normal metals are theoretically calculated. The linear response of the superconductor to a microwave field is analyzed within both transmission line theory and the framework of self-consistent treatment of vortex dynamics reported by Coffey and Clem [18]. The microwave properties are investigated as a function of static field and film thickness for nonresonant structures. The effect of substrate thickness on the resonant phenomenon is carefully studied as well. Numerical results reveal that the substrate resonance in the Meissner state behaves like a parallel lumped-parameter resonantor, while in the vortex state it behaves as a series lumped resonant circuit. The basic distinction suggests that care should be taken in microwave applications when using superconducting films in the vortex state.
URI: http://dx.doi.org/10.1109/20.573854
http://hdl.handle.net/11536/585
ISSN: 0018-9464
DOI: 10.1109/20.573854
期刊: IEEE TRANSACTIONS ON MAGNETICS
Volume: 33
Issue: 3
起始頁: 2348
結束頁: 2355
顯示於類別:期刊論文


文件中的檔案:

  1. A1997WX30600017.pdf