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Proximity effect model of ultranarrow NbN strips

Charaev, Ilya and Silbernagel, T and Bachowsky, B and Kuzmin, Artem and Doerner, Stefan and Ilin, Konstantin and Semenov, Alexej and Roditchev, D and Vodolazov, Denis and Siegel, Michael (2017) Proximity effect model of ultranarrow NbN strips. Physical Review B, 96 (184517), p. 13. American Physical Society. DOI: 10.1103/PhysRevB.96.184517 ISSN 1098-0121

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Abstract

We show that narrow superconducting strips in superconducting (S) and normal (N) states are universally described by the model presenting them as lateral NSN proximity systems in which the superconducting central band is sandwiched between damaged edge bands with suppressed superconductivity. The width of the superconducting band was experimentally determined from the value of magnetic field at which the band transits from the Meissner state to the static vortex state. Systematic experimental study of 4.9-nm-thick NbN strips with widths in the interval from 50 nm to 20 mum, which are all smaller than the Pearl length, demonstrates gradual evolution of the temperature dependence of the critical current with the change of the strip width.

Item URL in elib:https://elib.dlr.de/119868/
Document Type:Article
Title:Proximity effect model of ultranarrow NbN strips
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Charaev, IlyaUniversity of KarlsruheUNSPECIFIED
Silbernagel, Tuniversity of karlsruheUNSPECIFIED
Bachowsky, Buniversity of karlsruheUNSPECIFIED
Kuzmin, Artemuniversity of karlsruheUNSPECIFIED
Doerner, Stefanuniversity of KarlsruheUNSPECIFIED
Ilin, KonstantinUniversity of KarlsruheUNSPECIFIED
Semenov, AlexejUNSPECIFIEDUNSPECIFIED
Roditchev, DInstitut des Nanosciences de Paris, CNRS-UMR 7588, Université Pierre et Marie Curie-Paris 6 UPMC, 4 place Jussieu, 75252, Paris, FranceUNSPECIFIED
Vodolazov, DenisInstitute for Physics of Microstructures, Russian Academy of Sciences, 603950, Nizhny Novgorod, GSP-105, RussiaUNSPECIFIED
Siegel, MichaelUniversity of KarlsruheUNSPECIFIED
Date:17 November 2017
Journal or Publication Title:Physical Review B
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:96
DOI :10.1103/PhysRevB.96.184517
Page Range:p. 13
Publisher:American Physical Society
ISSN:1098-0121
Status:Published
Keywords:proximity effect, thin NbN films, critical current, edge defects
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Optische Technologien und Anwendungen
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy
Deposited By: Semenov, Prof.Dr. Alexey
Deposited On:07 May 2018 10:02
Last Modified:06 Sep 2019 15:29

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