Open Access
Open access
Nature Communications, volume 9, issue 1, publication number 2277

Expansion of a superconducting vortex core into a diffusive metal

Stolyarov Vasily S 1, 2, 3, 4, 5
Cren Tristan 5
Skryabina Olga V 3, 4
Khapaev Mikhail M 3, 6, 7
Kupriyanov Mikhail Yu 3, 6, 8
Roditchev Dimitri 3, 5, 10, 11
Publication typeJournal Article
Publication date2018-06-11
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor16.6
ISSN20411723
General Chemistry
General Biochemistry, Genetics and Molecular Biology
General Physics and Astronomy
Abstract
Vortices in quantum condensates exist owing to a macroscopic phase coherence. Here we show, both experimentally and theoretically, that a quantum vortex with a well-defined core can exist in a rather thick normal metal, proximized with a superconductor. Using scanning tunneling spectroscopy we reveal a proximity vortex lattice at the surface of 50 nm—thick Cu-layer deposited on Nb. We demonstrate that these vortices have regular round cores in the centers of which the proximity minigap vanishes. The cores are found to be significantly larger than the Abrikosov vortex cores in Nb, which is related to the effective coherence length in the proximity region. We develop a theoretical approach that provides a fully self-consistent picture of the evolution of the vortex with the distance from Cu/Nb interface, the interface impedance, applied magnetic field, and temperature. Our work opens a way for the accurate tuning of the superconducting properties of quantum hybrids.Quantum condensates may penetrate from one material to another due to the proximity effect. Here, Stolyarov et al. report the spatial evolution of quantum vortices from a superconducting Nb layer to a 50 nanometer thick diffusive metallic Cu-film, which is quite thick away from the interface.

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GOST Copy
Stolyarov V. S. et al. Expansion of a superconducting vortex core into a diffusive metal // Nature Communications. 2018. Vol. 9. No. 1. 2277
GOST all authors (up to 50) Copy
Stolyarov V. S., Cren T., Brun C., Golovchanskiy I. A., Skryabina O. V., Kasatonov D. I., Khapaev M. M., Kupriyanov M. Yu., Golubov A. A., Roditchev D. Expansion of a superconducting vortex core into a diffusive metal // Nature Communications. 2018. Vol. 9. No. 1. 2277
RIS |
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RIS Copy
TY - JOUR
DO - 10.1038/s41467-018-04582-1
UR - https://doi.org/10.1038%2Fs41467-018-04582-1
TI - Expansion of a superconducting vortex core into a diffusive metal
T2 - Nature Communications
AU - Stolyarov, Vasily S
AU - Cren, Tristan
AU - Brun, Christophe
AU - Skryabina, Olga V
AU - Kasatonov, Daniil I
AU - Khapaev, Mikhail M
AU - Kupriyanov, Mikhail Yu
AU - Golubov, Alexander A
AU - Roditchev, Dimitri
AU - Golovchanskiy, Igor' A.
PY - 2018
DA - 2018/06/11 00:00:00
PB - Springer Nature
IS - 1
VL - 9
PMID - 29891870
SN - 2041-1723
ER -
BibTex
Cite this
BibTex Copy
@article{2018_Stolyarov,
author = {Vasily S Stolyarov and Tristan Cren and Christophe Brun and Olga V Skryabina and Daniil I Kasatonov and Mikhail M Khapaev and Mikhail Yu Kupriyanov and Alexander A Golubov and Dimitri Roditchev and Igor' A. Golovchanskiy},
title = {Expansion of a superconducting vortex core into a diffusive metal},
journal = {Nature Communications},
year = {2018},
volume = {9},
publisher = {Springer Nature},
month = {jun},
url = {https://doi.org/10.1038%2Fs41467-018-04582-1},
number = {1},
doi = {10.1038/s41467-018-04582-1}
}
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