Nonlinear Dynamics of a Hybrid Josephson Heterostructure with Cuprate Antiferromagnetic Interlayer
- Авторы: Constantinian K.Y.1, Ovsyannikov G.A.1, Shadrin A.V.1, Kislinsky Y.V.1
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Учреждения:
- Kotelnikov Institute of Radio Engineering and Electronics. Russian Academy of Sciences
- Выпуск: Том 64, № 10 (2019)
- Страницы: 1108-1112
- Раздел: Radio Phenomena in Solids and Plasma
- URL: https://journals.rcsi.science/1064-2269/article/view/201361
- DOI: https://doi.org/10.1134/S1064226919090134
- ID: 201361
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Аннотация
The nonstationary Josephson effect in a hybrid heterostructure based on the YBa2Cu3O7–δ cuprate superconductor and cuprate antiferromagnetic barrier interlayer Ca0.5Sr0.5CuO2 and with the upper superconducting electrode Au/Nb is experimentally investigated. At the frequency of external exposure f = 70 GHz, close to the plasma frequency of the Josephson junction, a giant increase in the noise signal was detected, which was explained by the appearance of stochastic oscillations on the heterostructure. Stochastic oscillations, but with less intensity, occur at the frequency f = 45 GHz. At the same time, on the current–voltage characteristics, there are intervals with negative dynamic resistance.
Об авторах
K. Constantinian
Kotelnikov Institute of Radio Engineering and Electronics. Russian Academy of Sciences
Автор, ответственный за переписку.
Email: karen@hitech.cplire.ru
Россия, Moscow, 125009
G. Ovsyannikov
Kotelnikov Institute of Radio Engineering and Electronics. Russian Academy of Sciences
Email: karen@hitech.cplire.ru
Россия, Moscow, 125009
A. Shadrin
Kotelnikov Institute of Radio Engineering and Electronics. Russian Academy of Sciences
Email: karen@hitech.cplire.ru
Россия, Moscow, 125009
Yu. Kislinsky
Kotelnikov Institute of Radio Engineering and Electronics. Russian Academy of Sciences
Email: karen@hitech.cplire.ru
Россия, Moscow, 125009
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