Title :
High frequency detector response from an array of HTSC bicrystal Josephson junctions
Author :
Constantinian, K.Y. ; Mashtakov, A.D. ; Ovsyannikov, G.A. ; Kiejin Lee ; Iguchi, I.
Author_Institution :
Inst. of Radio Eng. & Electron., Acad. of Sci., Moscow, Russia
fDate :
6/1/1999 12:00:00 AM
Abstract :
YBaCuO Josephson junction arrays, fabricated on MgO bicrystal substrates were studied in wide frequency range at 7-26 GHz, 45-120 GHz, and at submillimeter 470-510 GHz waves. Subharmonic fractional Shapiro steps have been observed with amplitudes increasing with frequency of applied microwaves. Mm and submm wave harmonic and subharmonic selective detector response signals were registered when dc magnetic field was applied.
Keywords :
Josephson effect; barium compounds; bicrystals; high-temperature superconductors; microwave detectors; superconducting arrays; superconducting microwave devices; yttrium compounds; 45 to 120 GHz; 470 to 510 GHz; 7 to 26 GHz; MM-wave detection; MgO; MgO bicrystal substrate; Shapiro step; YBaCuO; YBaCuO HTSC Josephson junction array; high frequency detector; magnetic field; microwave detection; subMM-wave detection; Detectors; Frequency; Josephson junctions; Magnetic field measurement; Magnetic fields; Sensor arrays; Submillimeter wave technology; Substrates; Voltage; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
