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

doi:10.1016/j.physc.2004.03.239

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

Graduate Institute of Electro-Optical Science And Technology

Research output: Contribution to journal › Article

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, λ_L, 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 language	English
Pages (from-to)	161-168
Number of pages	8
Journal	Physica C: Superconductivity and its applications
Volume	406
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physc.2004.03.239
Publication status	Published - 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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title = "Intrinsic and effective microwave surface impedances of thin superconducting films in DC magnetic field",

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.",

keywords = "Mixed state, Penetration depth, Substrate resonance, Surface impedance",

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AU - Wu, Chien Jang

AU - Tsai, Yu Sheng

AU - Hsieh, Yi Jing

AU - Chang, Zhi Juan

PY - 2004/7/15

Y1 - 2004/7/15

N2 - 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.

AB - 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.

KW - Mixed state

KW - Penetration depth

KW - Substrate resonance

KW - Surface impedance

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