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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Detalles Bibliográficos
Autores principales: Dremov, Viacheslav V., Grebenchuk, Sergey Yu., Shishkin, Andrey G., Baranov, Denis S., Hovhannisyan, Razmik A., Skryabina, Olga V., Lebedev, Nickolay, Golovchanskiy, Igor A., Chichkov, Vladimir I., Brun, Christophe, Cren, Tristan, Krasnov, Vladimir M., Golubov, Alexander A., Roditchev, Dimitri, Stolyarov, Vasily S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6728352/
https://www.ncbi.nlm.nih.gov/pubmed/31488813
http://dx.doi.org/10.1038/s41467-019-11924-0
Descripción
Sumario: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.

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