Josephson coupling across a long single-crystalline Cu nanowire

O. V. Skryabina; S. V. Egorov; A. S. Goncharova; A. A. Klimenko; S. N. Kozlov; V.V. Ryazanov; S. V. Bakurskiy; M. Yu Kupriyanov; A. A. Golubov; K. S. Napolskii; V.S. Stolyarov

doi:10.1063/1.4984605

Josephson coupling across a long single-crystalline Cu nanowire

O. V. Skryabina
, S. V. Egorov
, A. S. Goncharova
, A. A. Klimenko
, S. N. Kozlov
, V.V. Ryazanov
, S. V. Bakurskiy
, M. Yu Kupriyanov
, A. A. Golubov
, K. S. Napolskii
, V.S. Stolyarov

Interfaces and Correlated Electron Systems

Research output: Contribution to journal › Article › Academic › peer-review

27 Citations (Scopus)

107 Downloads (Pure)

Abstract

We report on a fabrication method and electron-transport measurements for submicron Josephson junctions formed by Cu nanowires coupling to superconducting planar Nb electrodes. The Cu nanowires with a resistivity of ρ C:1 μ Ω cm at low temperatures consisting of single-crystalline segments have been obtained by templated electrodeposition using anodic aluminum oxide as a porous matrix. The current-voltage characteristics of the devices have been studied as a function of temperature and magnetic field. For all junctions, the critical current monotonically decreases with a magnetic field. The measured temperature and magnetic field dependencies are consistent with the model for one-dimensional diffusive superconductor/normal metal/superconductor (SNS) Josephson junctions within the quasiclassical theory of superconductivity.

Original language	English
Article number	222605
Journal	Applied physics letters
Volume	110
Issue number	22
DOIs	https://doi.org/10.1063/1.4984605
Publication status	Published - 29 May 2017

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10.1063/1.4984605

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title = "Josephson coupling across a long single-crystalline Cu nanowire",

abstract = "We report on a fabrication method and electron-transport measurements for submicron Josephson junctions formed by Cu nanowires coupling to superconducting planar Nb electrodes. The Cu nanowires with a resistivity of ρ C:1 μ Ω cm at low temperatures consisting of single-crystalline segments have been obtained by templated electrodeposition using anodic aluminum oxide as a porous matrix. The current-voltage characteristics of the devices have been studied as a function of temperature and magnetic field. For all junctions, the critical current monotonically decreases with a magnetic field. The measured temperature and magnetic field dependencies are consistent with the model for one-dimensional diffusive superconductor/normal metal/superconductor (SNS) Josephson junctions within the quasiclassical theory of superconductivity.",

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T1 - Josephson coupling across a long single-crystalline Cu nanowire

AU - Skryabina, O. V.

AU - Egorov, S. V.

AU - Goncharova, A. S.

AU - Klimenko, A. A.

AU - Kozlov, S. N.

AU - Ryazanov, V.V.

AU - Bakurskiy, S. V.

AU - Kupriyanov, M. Yu

AU - Golubov, A. A.

AU - Napolskii, K. S.

AU - Stolyarov, V.S.

PY - 2017/5/29

Y1 - 2017/5/29

N2 - We report on a fabrication method and electron-transport measurements for submicron Josephson junctions formed by Cu nanowires coupling to superconducting planar Nb electrodes. The Cu nanowires with a resistivity of ρ C:1 μ Ω cm at low temperatures consisting of single-crystalline segments have been obtained by templated electrodeposition using anodic aluminum oxide as a porous matrix. The current-voltage characteristics of the devices have been studied as a function of temperature and magnetic field. For all junctions, the critical current monotonically decreases with a magnetic field. The measured temperature and magnetic field dependencies are consistent with the model for one-dimensional diffusive superconductor/normal metal/superconductor (SNS) Josephson junctions within the quasiclassical theory of superconductivity.

AB - We report on a fabrication method and electron-transport measurements for submicron Josephson junctions formed by Cu nanowires coupling to superconducting planar Nb electrodes. The Cu nanowires with a resistivity of ρ C:1 μ Ω cm at low temperatures consisting of single-crystalline segments have been obtained by templated electrodeposition using anodic aluminum oxide as a porous matrix. The current-voltage characteristics of the devices have been studied as a function of temperature and magnetic field. For all junctions, the critical current monotonically decreases with a magnetic field. The measured temperature and magnetic field dependencies are consistent with the model for one-dimensional diffusive superconductor/normal metal/superconductor (SNS) Josephson junctions within the quasiclassical theory of superconductivity.

KW - 22/4 OA procedure

UR - https://www.scopus.com/pages/publications/85020191088

U2 - 10.1063/1.4984605

DO - 10.1063/1.4984605

M3 - Article

AN - SCOPUS:85020191088

SN - 0003-6951

VL - 110

JO - Applied physics letters

JF - Applied physics letters

IS - 22

M1 - 222605

ER -

Josephson coupling across a long single-crystalline Cu nanowire

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