Analytical calculation of the excess current in the Octavio-Tinkham-Blonder-Klapwijk theory
Superconductor Science and Technology 22, 085016 (2009).
G. Niebler, G. Cuniberti, and T. Novotný.
Journal DOI: https://doi.org/10.1088/0953-2048/22/8/085016

We present an analytical derivation of the excess current in Josephson junctions within the Octavio-Tinkham-Blonder-Klapwijk theory for both symmetric and asymmetric barrier strengths. We confirm the result found numerically by Flensberg et al for equal barriers (1988 Phys. Rev. B 38 8707), including the prediction of negative excess current for low transparencies, and we generalize it for differing barriers. Our analytical formulae provide for convenient fitting of experimental data, also in the less studied, but practically relevant, case of the barrier asymmetry.


Cover
©https://doi.org/10.1088/0953-2048/22/8/085016
Share


Involved Scientists
Analytical calculation of the excess current in the Octavio-Tinkham-Blonder-Klapwijk theory
Superconductor Science and Technology 22, 085016 (2009).
G. Niebler, G. Cuniberti, and T. Novotný.
Journal DOI: https://doi.org/10.1088/0953-2048/22/8/085016

We present an analytical derivation of the excess current in Josephson junctions within the Octavio-Tinkham-Blonder-Klapwijk theory for both symmetric and asymmetric barrier strengths. We confirm the result found numerically by Flensberg et al for equal barriers (1988 Phys. Rev. B 38 8707), including the prediction of negative excess current for low transparencies, and we generalize it for differing barriers. Our analytical formulae provide for convenient fitting of experimental data, also in the less studied, but practically relevant, case of the barrier asymmetry.


Cover
©https://doi.org/10.1088/0953-2048/22/8/085016
Share


Involved Scientists