YBa2Cu3O7-x Bicrystal Josephson Junctions With High- [Formula Omitted] Products and Wide-Ranging Resistances for THz Applications

Josephson junctions with high characteristic voltages [Formula Omitted] and resistances [Formula Omitted] ranging from subohm values to several hundred ohms are required for various terahertz (THz) applications. Due to optimization of technology, [100]-tilt YBa2Cu3O7-x bicrystal Josephson junctions...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2016-01, Vol.26 (3), p.1
Main Authors: Gundareva, Irina, Divin, Yuriy
Format: Article
Language:English
Online Access:Get full text
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Summary:Josephson junctions with high characteristic voltages [Formula Omitted] and resistances [Formula Omitted] ranging from subohm values to several hundred ohms are required for various terahertz (THz) applications. Due to optimization of technology, [100]-tilt YBa2Cu3O7-x bicrystal Josephson junctions with an average [Formula Omitted] (5 K) value of 7 mV at an [Formula Omitted]-range from 0.4 to 400 [Formula Omitted] have been fabricated on (320) bicrystal NdGaO3 substrates. Classical and frequency-selective detection of THz radiation have been demonstrated with the fabricated Josephson junctions. The main characteristics of Josephson oscillators, spectrum analyzers, admittance spectrometers, and classical detectors have been evaluated within this range of junction parameters, and promising results have been obtained.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2016.2520465