Microwave losses of interferometers with many Josephson junctions versus DC magnetic field

Author

Lochschmied, R. ; Benzing, W. ; Jutzi, W.

Author_Institution

Inst. fur Elektrotech. Grundlagen der Inf., Karlsruhe Univ., Germany

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

3187

Lastpage

3190

Abstract

The average microwave losses of interferometers with two and four strongly damped Josephson junctions biased by a microwave current source at 10 GHz much below the plasma frequency have been simulated as a function of an external magnetic field. Microwave losses appear periodically within distinct ranges of the magnetic field, with microwave amplitudes below and above threshold currents. The main period corresponds to one flux quantum in every interferometer loop. The absorption rate increases with the microwave amplitude in qualitative agreement with measurements.<>

Keywords

Josephson effect; interferometers; losses; superconducting microwave devices; 10 GHz; DC magnetic field; absorption rate; damped Josephson junctions; flux quantum; interferometers; microwave current source; microwave losses; simulation; threshold currents; Electromagnetic wave absorption; Frequency; Interferometers; Josephson junctions; Magnetic field measurement; Magnetic fields; Microwave measurements; Plasma simulation; Plasma sources; Threshold current;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.403269

Filename

403269