Local Josephson vortex generation and manipulation with a Magnetic Force Microscope

Josephson vortices play an essential role in superconducting quantum electronics devices. Often seen as purely conceptual topological objects, 2π-phase singularities, their observation and manipulation are challenging. Here we show that in Superconductor-Normal metal-Superconductor lateral junctions...

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Bibliographic Details
Published in:Nature communications 2019-09, Vol.10 (1)
Main Authors: Dremov, Viacheslav, Grebenchuk, Sergey Yu, Shishkin, Andrey, Baranov, Denis, Hovhannisyan, Razmik, Skryabina, Olga, Lebedev, Nickolay, Golovchanskiy, Igor, Chichkov, Vladimir, Brun, Christophe, Cren, Tristan, Krasnov, Vladimir, Golubov, Alexander, Roditchev, Dimitri, Stolyarov, Vasily
Format: Article
Language:English
Subjects:
Condensed Matter
Materials Science
Mesoscopic Systems and Quantum Hall Effect
Physics
Strongly Correlated Electrons
Superconductivity
Online Access:Get full text
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Summary:Josephson vortices play an essential role in superconducting quantum electronics devices. Often seen as purely conceptual topological objects, 2π-phase singularities, their observation and manipulation are challenging. Here we show that in Superconductor-Normal metal-Superconductor lateral junctions Josephson vortices have a peculiar magnetic fingerprint that we reveal in Magnetic Force Microscopy (MFM) experiments. Based on this discovery, we demonstrate the possibility of the Josephson vortex generation and manipulation by the magnetic tip of a MFM, thus paving a way for the remote inspection and control of individual nano-components of superconducting quantum circuits.
ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-019-11924-0