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RUZHITSKIY, Vsevolod; SOLOVIEV, Igor I.; BAKURSKIY, Sergey V.; KLENOV, Nikolai V.; KUPIYANOV, Mikhail; STOLYAROV, V.; SIDORENKO, Anatolie; RODITCHEV, Dimitri. Modeling of the vortex dynamics in long Josephson junction. In: IEEE 14th Workshop on Low Temperature Electronics WOLTE 2021 WOLTE 2021. Ediția 14, 12-16 aprilie 2021, New Jersey. New Jersey, SUA: Institute of Electrical and Electronics Engineers Inc., 2021, p. 1. ISBN 978-172819306-9.
|IEEE 14th Workshop on Low Temperature Electronics WOLTE 2021
Ediția 14, 2021
Masa rotundă "14th IEEE Workshop on Low Temperature Electronics" |
New Jersey, United States, 12-16 aprilie 2021
We have developed a theoretical model describing the dynamics of the Josephson vortices in the long planar Josephson junction under the influence of the alternating heterogeneous magnetic field created by the tip of magnetic force microscope (MFM), and external uniform, constant magnetic field. The fitting of the model parameters ensured the coincidence of the calculated dependencies of the junction critical current on the external magnetic field with the experimental data, with a standard deviation of less than 0.1 percent. We considered the range of values of the field corresponding to the penetration of more than 10 Josephson vortices at different positions of the MFM tip. From comparison with the experiment, we obtained the estimates of Josephson length, effective area of the junction, critical current distribution along the junction boundary, inductance of the lead wires of the experimental sample and the distribution of the magnetic flux inside the junction created by the MFM tip.
Josephson junction, Josephson vortices magnetic force microscope