23-26 October 2018
Faculty of Radio Physics, Electronics and Computer Systems
Europe/Kiev timezone

QUANTUM DYNAMICS OF VORTICES IN LONG JOSEPHSON JUNCTIONS

Not scheduled
20m
Faculty of Radio Physics, Electronics and Computer Systems

Faculty of Radio Physics, Electronics and Computer Systems

Faculty of Radio Physics, Electronics and Computer Systems of Taras Shevchenko National University of Kyiv, acad. Glushkov ave., 4g, Kyiv, Ukraine
Oral Physics of Magnetism Physics of Magnetism

Speaker

Prof. Mikhail Belogolovskii (G.V. Kurdyumov Institute for Metal Physics)

Abstract

We use the edge-current injection technique to elucidate the dynamics of long superconductor–normal metal–superconductor Josephson junctions. Following a theoretical prediction that the junctions with a weak link made of a diffusive metal could sustain Josephson vortices with normal cores, we confirm it demonstrating their presence in MoRe/Pb/Sn-I-Pb heterostructures. It is shown that our devices follow the resistive model of Josephson junctions and contain quantum topological entities (vortices) in the weak link.

Primary authors

Prof. Eduard Rudenko (G.V. Kurdyumov Institute for Metal Physics) Dr Igor Korotash (G.V. Kurdyumov Institute for Metal Physics) Dr Anatolij Krakovny (G.V. Kurdyumov Institute for Metal Physics) Prof. Mikhail Belogolovskii (G.V. Kurdyumov Institute for Metal Physics)

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