Phonon structure of unusually high energy and strength in Nb-Nb oxide-Pb tunnel junctions

E. L. Wolf; J. H. Magerlein; W. J. Gallagher; C. J. Kircher

doi:10.1016/0375-9601(83)90661-8

Phonon structure of unusually high energy and strength in Nb-Nb oxide-Pb tunnel junctions

E. L. Wolf, J. H. Magerlein, W. J. Gallagher, C. J. Kircher

Applied Physics

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

Abstract

Tunneling measurements on Nb-Nb oxide-Pb junctions with barriers formed by rf oxidation reveal phonon modes contributing to the superconducting pair potential Δ(E) at E=115 meV. This structure is interpreted as resulting from vibrations of Nb-O octahedra in an interfacial layer of Nb₂O₅ in which superconductivity is induced by proximity with Nb.

Original language	English (US)
Pages (from-to)	349-353
Number of pages	5
Journal	Physics Letters A
Volume	97
Issue number	8
DOIs	https://doi.org/10.1016/0375-9601(83)90661-8
State	Published - Sep 19 1983

ASJC Scopus subject areas

General Physics and Astronomy

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10.1016/0375-9601(83)90661-8

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title = "Phonon structure of unusually high energy and strength in Nb-Nb oxide-Pb tunnel junctions",

abstract = "Tunneling measurements on Nb-Nb oxide-Pb junctions with barriers formed by rf oxidation reveal phonon modes contributing to the superconducting pair potential Δ(E) at E=115 meV. This structure is interpreted as resulting from vibrations of Nb-O octahedra in an interfacial layer of Nb2O5 in which superconductivity is induced by proximity with Nb.",

author = "Wolf, {E. L.} and Magerlein, {J. H.} and Gallagher, {W. J.} and Kircher, {C. J.}",

year = "1983",

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T1 - Phonon structure of unusually high energy and strength in Nb-Nb oxide-Pb tunnel junctions

AU - Wolf, E. L.

AU - Magerlein, J. H.

AU - Gallagher, W. J.

AU - Kircher, C. J.

PY - 1983/9/19

Y1 - 1983/9/19

N2 - Tunneling measurements on Nb-Nb oxide-Pb junctions with barriers formed by rf oxidation reveal phonon modes contributing to the superconducting pair potential Δ(E) at E=115 meV. This structure is interpreted as resulting from vibrations of Nb-O octahedra in an interfacial layer of Nb2O5 in which superconductivity is induced by proximity with Nb.

AB - Tunneling measurements on Nb-Nb oxide-Pb junctions with barriers formed by rf oxidation reveal phonon modes contributing to the superconducting pair potential Δ(E) at E=115 meV. This structure is interpreted as resulting from vibrations of Nb-O octahedra in an interfacial layer of Nb2O5 in which superconductivity is induced by proximity with Nb.

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Phonon structure of unusually high energy and strength in Nb-Nb oxide-Pb tunnel junctions

Abstract

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