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

Zhu, S.; Zijlstra, T.; Golubov, A. A.; van den Bemt, M.; Baryshev, A. M.; Klapwijk, T. M.
December 2009
Applied Physics Letters;12/21/2009, Vol. 95 Issue 25, p253502
Academic Journal
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.


Related Articles

  • Experimental Study of Electromagnetic Environment in the Vicinity of High Voltage Lines. Tourab, Wafa; Babouri, Abdesselam; Nemamcha, Mohamed // American Journal of Engineering & Applied Sciences;2011, Vol. 4 Issue 2, p209 

    The article presents a study which examines the behavior of electromagnetic fields produced by power lines in Algeria. The study analyzes the effects of the couplings between the lines on electric and magnetic fields. It is found out that the maximum intensities of the electric and magnetic...

  • Process γγ → νν in a Strong Magnetic Field. Kuznetsov, A. V.; Mikheev, N. V.; Rumyantsev, D. A. // Physics of Atomic Nuclei;Feb2003, Vol. 66 Issue 2, p294 

    The three-vertex loop amplitude in a strong magnetic field are analyzed in a general form by using the asymptotic behavior of the electron propagator in an external field. The process γγ &rar; ν&νmacr; is studied in terms of the scalar-vector-vector (SVV), pseudoscalar-vector-vector...

  • Overlapping ion structures in the mid-altitude cusp under northward IMF: signature of dual lobe reconnection? Pitout, F.; Escoubet, C. P.; Taylor, M. G. G. T.; Berchem, J.; Walsh, A. P. // Annales Geophysicae (09927689);Mar2012, Vol. 30 Issue 3, p489 

    On some rare occasions, data from the Cluster Ion Spectrometer (CIS) in the mid-altitude cusp reveal overlapping ion populations under northward interplanetary magnetic field (IMF). While the poleward part of the cusp exhibits the expected reverse dispersion due to lobe reconnection, its...

  • Stabilization of the magnetic resonance position by a harmonized field. Ivanchenko, E. A. // Low Temperature Physics;Jul2005, Vol. 31 Issue 7, p577 

    A two-level system in a magnetic field with a periodic temporal modulation that stabilizes the position of the magnetic resonance is investigated in the density matrix formalism. An exact solution is found for the density matrix at resonance. It is shown that at resonance the probability of a...

  • Reduce magnetic fields in transmission lines by design. Kennon, Richard; McFarland, Kathy // Electric Light & Power;Feb1994, Vol. 72 Issue 2, p9 

    Examines several transmission line parameters for the reduction of magnetic fields (MF). Derivation of the formula for the calculation of MFs; Designs studied include a flat three-phase configuration; Delta configuration; Six-conductor split-phase arrangement; Features.

  • Zeeman effects in excited states of SO2 investigated with sub-Doppler resolution. Kullmer, R.; Demtröder, W. // Journal of Chemical Physics;9/15/1985, Vol. 83 Issue 6, p2712 

    Zeeman splittings in the spectrum of SO2 around 320 nm have been accurately measured at different magnetic fields in a collimated supersonic SO2 beam with a spectral resolution of 10 MHz. The analysis of the Zeeman patterns proves that the magnetic moment of the vibronically coupled 1B1 and 1A2...

  • Design and experimental tests of a novel neutron spin analyzer for wide angle spin echo spectrometers. Fouquet, Peter; Farago, Bela; Andersen, Ken H.; Bentley, Phillip M.; Pastrello, Gilles; Sutton, Iain; Thaveron, Eric; Thomas, Fréderic; Moskvin, Evgeny; Pappas, Catherine // Review of Scientific Instruments;Sep2009, Vol. 80 Issue 9, p095105 

    This paper describes the design and experimental tests of a novel neutron spin analyzer optimized for wide angle spin echo spectrometers. The new design is based on nonremanent magnetic supermirrors, which are magnetized by vertical magnetic fields created by NdFeB high field permanent magnets....

  • A terahertz spectrometer with a pulsed high magnetic field. Anzin, V.; Lebedev, S.; Mukhin, A.; Porodinkov, O.; Prokhorov, A.; Spektor, I.; Kazeev, M.; Kozlov, V.; Tolstov, Yu. // Instruments & Experimental Techniques;Nov2008, Vol. 51 Issue 6, p850 

    A terahertz (THz) spectrometer based on backward-wave tubes and combined with a pulsed-magnetic-field generator with a pulse duration of ∼100 μs and an amplitude of up to 50 T is described. This spectrometer is indented for studying magnetic resonances of various magnets in the THz...

  • Microstrip superconducting quantum interference device radio-frequency amplifier: Scattering parameters and input coupling. Kinion, D.; Clarke, John // Applied Physics Letters;4/28/2008, Vol. 92 Issue 17, p172503 

    The forward scattering parameters of an amplifier based on a dc superconducting quantum interference device are directly measured at 4.2 K as functions of the applied magnetic flux. These parameters are equivalent to the real and imaginary components of the input impedance and forward gain of...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics