TY - JOUR
T1 - Intrinsic and effective microwave surface impedances of thin superconducting films in DC magnetic field
AU - Wu, Chien Jang
AU - Tsai, Yu Sheng
AU - Hsieh, Yi Jing
AU - Chang, Zhi Juan
N1 - Funding Information:
C.-J.W. is grateful to the financial support by the National Science Council of the Republic of China under grant no. NSC-92-2112-M-150-001.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
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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U2 - 10.1016/j.physc.2004.03.239
DO - 10.1016/j.physc.2004.03.239
M3 - Article
AN - SCOPUS:2942560693
VL - 406
SP - 161
EP - 168
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 3-4
ER -