Magnetic field dependence of the coupling efficiency of a superconducting transmission line due to the proximity effect

S. Zhu; T. Zijlstra; A. A. Golubov; M. van den Bemt; A. M. Baryshev; T. M. Klapwijk

doi:10.1063/1.3276076

Magnetic field dependence of the coupling efficiency of a superconducting transmission line due to the proximity effect

S. Zhu^*, T. Zijlstra, A. A. Golubov, M. van den Bemt, A. M. Baryshev, T. M. Klapwijk

^*Corresponding author for this work

Astronomy

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Abstract

The coupling efficiency of a Nb superconducting transmission line has been measured using a Fourier transform spectrometer for different magnetic fields. It is found that the coupling decreases with increasing magnetic field when the frequency is close to the gap of the Nb superconductor. This is attributed to the changes of the surface impedance of the proximity-coupled superconductor/normal-metal bilayers in the transmission line. (C) 2009 American Institute of Physics. [doi:10.1063/1.3276076]

Original language	English
Article number	253502
Number of pages	3
Journal	Applied Physics Letters
Volume	95
Issue number	25
DOIs	https://doi.org/10.1063/1.3276076
Publication status	Published - 21-Dec-2009

Keywords

GAP FREQUENCY
JUNCTIONS
CIRCUITS
NB

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abstract = "The coupling efficiency of a Nb superconducting transmission line has been measured using a Fourier transform spectrometer for different magnetic fields. It is found that the coupling decreases with increasing magnetic field when the frequency is close to the gap of the Nb superconductor. This is attributed to the changes of the surface impedance of the proximity-coupled superconductor/normal-metal bilayers in the transmission line. (C) 2009 American Institute of Physics. [doi:10.1063/1.3276076]",

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T1 - Magnetic field dependence of the coupling efficiency of a superconducting transmission line due to the proximity effect

AU - Zhu, S.

AU - Zijlstra, T.

AU - Golubov, A. A.

AU - van den Bemt, M.

AU - Baryshev, A. M.

AU - Klapwijk, T. M.

PY - 2009/12/21

Y1 - 2009/12/21

N2 - The coupling efficiency of a Nb superconducting transmission line has been measured using a Fourier transform spectrometer for different magnetic fields. It is found that the coupling decreases with increasing magnetic field when the frequency is close to the gap of the Nb superconductor. This is attributed to the changes of the surface impedance of the proximity-coupled superconductor/normal-metal bilayers in the transmission line. (C) 2009 American Institute of Physics. [doi:10.1063/1.3276076]

AB - The coupling efficiency of a Nb superconducting transmission line has been measured using a Fourier transform spectrometer for different magnetic fields. It is found that the coupling decreases with increasing magnetic field when the frequency is close to the gap of the Nb superconductor. This is attributed to the changes of the surface impedance of the proximity-coupled superconductor/normal-metal bilayers in the transmission line. (C) 2009 American Institute of Physics. [doi:10.1063/1.3276076]

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KW - CIRCUITS

KW - NB

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VL - 95

JO - Applied Physics Letters

JF - Applied Physics Letters

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M1 - 253502

ER -

Magnetic field dependence of the coupling efficiency of a superconducting transmission line due to the proximity effect

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