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Regensburg 2019 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 49: Poster Session: Superconductivity

TT 49.41: Poster

Mittwoch, 3. April 2019, 15:00–18:30, Poster D

Josephson vortices in a high kinetic inductive environment — •Lukas Powalla1, Micha Wildermuth1, Jan Nicolas Voss1, Yannick Schön1, Hannes Rotzinger1, and Alexey V. Ustinov1,21Physikalisches Institut, Karlsruher Institut für Technologie, Karlsruhe, Germany — 2Russian Quantum Center, National University of Science and Technology MISIS, Moscow, Russia

The dynamics of Josephson vortices in long Josephson junctions is a well-known example of solitons in physics and allows to study highly nonlinear effects on a mesoscopic scale. A possible path to approach a quantum limit of soliton propagation is to study the Josephson vortices in an environment with high kinetic inductance. We experimentally study long Josephson junctions with electrodes having a large fraction of high kinetic inductance. The kinetic inductance of the electrodes is expected to strongly reduce the Josephson penetration depth and leads to nonlocal electrodynamics of vortices in the junction.
We will present transport measurements of long Josephson junctions with electrodes made from disordered oxidized aluminium and evaluate the influence of high kinetic inductance on the vortex properties.

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