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Microwave dynamics of Josephson structures with nontrivial current-phase relation

Ovsyannikov, G. A. and Constantinian, K. Y. and Kislinskii, Yu. V. and Komissinskii, P. V. and Borisenko, I. V. and Karminskaya, T. Yu. and Kornev, V. K. (2006):
Microwave dynamics of Josephson structures with nontrivial current-phase relation.
In: Journal of Communications Technology and Electronics, Springer, pp. 1078-1086, 51, (9), ISSN 1064-2269, [Online-Edition: http://dx.doi.org/10.1134/S1064226906090087],
[Article]

Abstract

The electrophysical and dynamic parameters (Shapiro steps and detector response) of hybrid heterostructures based on oxide superconductors with the d-wave symmetry of the order parameter are studied. Deviation of the current-phase relation from the trivial (sinusoidal) form is revealed. It is shown in terms of a generalized Resistive Shunted Function model with the junction capacitance and higher harmonics of the current-phase relation has virtually no influence on the width of harmonic Shapiro steps but changes the scale of the step-width dependence on the ac current of an external electromagnetic field. In addition, it is shown that these dependences have no local minima if the current-phase relation (CPR) contains harmonics higher than the first. For heterostructures, the amplitudes and signs of the CPR harmonics are determined through comparison of theoretical and experimental data.

Item Type: Article
Erschienen: 2006
Creators: Ovsyannikov, G. A. and Constantinian, K. Y. and Kislinskii, Yu. V. and Komissinskii, P. V. and Borisenko, I. V. and Karminskaya, T. Yu. and Kornev, V. K.
Title: Microwave dynamics of Josephson structures with nontrivial current-phase relation
Language: English
Abstract:

The electrophysical and dynamic parameters (Shapiro steps and detector response) of hybrid heterostructures based on oxide superconductors with the d-wave symmetry of the order parameter are studied. Deviation of the current-phase relation from the trivial (sinusoidal) form is revealed. It is shown in terms of a generalized Resistive Shunted Function model with the junction capacitance and higher harmonics of the current-phase relation has virtually no influence on the width of harmonic Shapiro steps but changes the scale of the step-width dependence on the ac current of an external electromagnetic field. In addition, it is shown that these dependences have no local minima if the current-phase relation (CPR) contains harmonics higher than the first. For heterostructures, the amplitudes and signs of the CPR harmonics are determined through comparison of theoretical and experimental data.

Journal or Publication Title: Journal of Communications Technology and Electronics
Volume: 51
Number: 9
Publisher: Springer
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Advanced Thin Film Technology
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 29 Mar 2012 08:22
Official URL: http://dx.doi.org/10.1134/S1064226906090087
Identification Number: doi:10.1134/S1064226906090087
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