This title appears in the Scientific Report :
2017
Please use the identifier:
http://dx.doi.org/10.1109/TASC.2016.2632107 in citations.
Intrinsic AC Shunting in [100]-Tilt Bicrystal YBa2Cu3O $_{7 - x}$ Josephson Junctions
Intrinsic AC Shunting in [100]-Tilt Bicrystal YBa2Cu3O $_{7 - x}$ Josephson Junctions
[100]-tilt YBa2Cu3O7-x bicrystal Josephson junctions are good candidates to realize high values of characteristic voltages IcRn, which are expected due to large energy gaps in high-Tc materials. Here, we report on detailed electrical characterization of [100]-tilt YBa2Cu3O7-x bicrystal Josephson jun...
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Personal Name(s): | Gundareva, Irina |
---|---|
Pavlovskii, Valery / Divin, Yuriy | |
Contributing Institute: |
Mikrostrukturforschung; PGI-5 |
Published in: | IEEE transactions on applied superconductivity, 27 (2017) 4, S. 1 - 5 |
Imprint: |
New York, NY
IEEE
2017
|
DOI: |
10.1109/TASC.2016.2632107 |
Document Type: |
Journal Article |
Research Program: |
Controlling Collective States |
Publikationsportal JuSER |
[100]-tilt YBa2Cu3O7-x bicrystal Josephson junctions are good candidates to realize high values of characteristic voltages IcRn, which are expected due to large energy gaps in high-Tc materials. Here, we report on detailed electrical characterization of [100]-tilt YBa2Cu3O7-x bicrystal Josephson junctions, which have the maximal IcRn-values up to 9.4 mV, for resistances Rn in the range from 0.9 to 400Ω. The I-V curves have been fitted well to those of the RSJ model with ac-coupled resistive shunts Re. The first derivatives dV/dI versus V have demonstrated a reproducible set of resonances of two types. Numerical simulations of the dV/dI versus V for Josephson junctions coupled with external THz RLC-resonators have been made and both types of resonances have been fitted. A form of the I-V curves and resonances in the first derivatives dV/dI versus V have been attributed to intrinsic broadband and frequency-selective losses, due to interaction of Josephson oscillations with transverse and longitudinal IR-active phonons in YBa2Cu3O7-x electrodes. |