Superconducting proximity effect in the presence of strong spin scattering

J. Eom; J. Aumentado; V. Chandrasekhar; P. M. Baldo; L. E. Rehn

doi:10.1016/S0038-1098(03)00488-5

Superconducting proximity effect in the presence of strong spin scattering

J. Eom^*, J. Aumentado, V. Chandrasekhar, P. M. Baldo, L. E. Rehn

^*Corresponding author for this work

Physics and Astronomy

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

2 Scopus citations

Abstract

We report measurements of the four terminal temperature dependent resistance of narrow Au wires implanted with 100 ppm Fe impurities in proximity to superconducting Al films. The wires show an initial decrease in resistance as the temperature is lowered through the superconducting transition of the Al films, but then show an increase in resistance as the temperature is lowered further. In contrast to the case of pure Au wires in contact with a superconducting film, the resistance at the lowest temperatures rises above the normal state resistance. Analysis of the data shows that, in addition to contributions from magnetic scattering and electron-electron interactions, the temperature dependent resistivity shows a substantial contribution from the superconducting proximity effect, which exists even in the presence of strong spin scattering. Published by Elsevier Ltd.

Original language	English (US)
Pages (from-to)	545-549
Number of pages	5
Journal	Solid State Communications
Volume	127
Issue number	8
DOIs	https://doi.org/10.1016/S0038-1098(03)00488-5
State	Published - Aug 2003

Keywords

A. Heterojunctions
A. Superconductors
D. Electronic transport
D. Kondo effects

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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title = "Superconducting proximity effect in the presence of strong spin scattering",

abstract = "We report measurements of the four terminal temperature dependent resistance of narrow Au wires implanted with 100 ppm Fe impurities in proximity to superconducting Al films. The wires show an initial decrease in resistance as the temperature is lowered through the superconducting transition of the Al films, but then show an increase in resistance as the temperature is lowered further. In contrast to the case of pure Au wires in contact with a superconducting film, the resistance at the lowest temperatures rises above the normal state resistance. Analysis of the data shows that, in addition to contributions from magnetic scattering and electron-electron interactions, the temperature dependent resistivity shows a substantial contribution from the superconducting proximity effect, which exists even in the presence of strong spin scattering. Published by Elsevier Ltd.",

keywords = "A. Heterojunctions, A. Superconductors, D. Electronic transport, D. Kondo effects",

author = "J. Eom and J. Aumentado and V. Chandrasekhar and Baldo, {P. M.} and Rehn, {L. E.}",

note = "Funding Information: This work was supported by the NSF through DMR-0201530, and by the Korea Research Foundation Grant (KRF-2002-041-C00105), and the US Department of Energy under Contract No. W-31-109-Eng-38.",

year = "2003",

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language = "English (US)",

volume = "127",

pages = "545--549",

journal = "Solid State Communications",

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T1 - Superconducting proximity effect in the presence of strong spin scattering

AU - Eom, J.

AU - Aumentado, J.

AU - Chandrasekhar, V.

AU - Baldo, P. M.

AU - Rehn, L. E.

N1 - Funding Information: This work was supported by the NSF through DMR-0201530, and by the Korea Research Foundation Grant (KRF-2002-041-C00105), and the US Department of Energy under Contract No. W-31-109-Eng-38.

PY - 2003/8

Y1 - 2003/8

N2 - We report measurements of the four terminal temperature dependent resistance of narrow Au wires implanted with 100 ppm Fe impurities in proximity to superconducting Al films. The wires show an initial decrease in resistance as the temperature is lowered through the superconducting transition of the Al films, but then show an increase in resistance as the temperature is lowered further. In contrast to the case of pure Au wires in contact with a superconducting film, the resistance at the lowest temperatures rises above the normal state resistance. Analysis of the data shows that, in addition to contributions from magnetic scattering and electron-electron interactions, the temperature dependent resistivity shows a substantial contribution from the superconducting proximity effect, which exists even in the presence of strong spin scattering. Published by Elsevier Ltd.

AB - We report measurements of the four terminal temperature dependent resistance of narrow Au wires implanted with 100 ppm Fe impurities in proximity to superconducting Al films. The wires show an initial decrease in resistance as the temperature is lowered through the superconducting transition of the Al films, but then show an increase in resistance as the temperature is lowered further. In contrast to the case of pure Au wires in contact with a superconducting film, the resistance at the lowest temperatures rises above the normal state resistance. Analysis of the data shows that, in addition to contributions from magnetic scattering and electron-electron interactions, the temperature dependent resistivity shows a substantial contribution from the superconducting proximity effect, which exists even in the presence of strong spin scattering. Published by Elsevier Ltd.

KW - A. Heterojunctions

KW - A. Superconductors

KW - D. Electronic transport

KW - D. Kondo effects

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U2 - 10.1016/S0038-1098(03)00488-5

DO - 10.1016/S0038-1098(03)00488-5

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VL - 127

SP - 545

EP - 549

JO - Solid State Communications

JF - Solid State Communications

SN - 0038-1098

IS - 8

ER -

Superconducting proximity effect in the presence of strong spin scattering

Abstract

Keywords

ASJC Scopus subject areas

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