Coherent diffusive transport mediated by Andreev reflections at V=Delta/e in a mesoscopic superconductor/semiconductor/superconductor junction

Jonatan Kutchinsky; Rafael Jozef Taboryski; Oliver Kuhn; Claus B. Sørensen; Poul Erik Lindelof; Anders Kristensen; Jørn Bindslev Hansen; Claus Schelde Jacobsen; Johannes Skov

doi:10.1103/PhysRevB.56.R2932

Coherent diffusive transport mediated by Andreev reflections at V=Delta/e in a mesoscopic superconductor/semiconductor/superconductor junction

Jonatan Kutchinsky, Rafael Jozef Taboryski, Oliver Kuhn, Claus B. Sørensen, Poul Erik Lindelof, Anders Kristensen, Jørn Bindslev Hansen, Claus Schelde Jacobsen, Johannes Skov

University of Copenhagen

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Abstract

We present experiments revealing a singularity in the coherent current across a superconductor/semiconductor/superconductor (SSmS) junction at the bias voltage corresponding to the superconducting energy gap V=Delta/e. The SSmS structure consists of highly doped GaAs with superconducting electrodes of aluminum configured as an interferometer. The phase-coherent component of the current is probed as the amplitude of h/2e vs magnetic-field oscillations in the differential resistance of the interferometer.

Original language	English
Journal	Physical Review B
Volume	56
Issue number	6
Pages (from-to)	R2932-R2935
ISSN	2469-9950
DOIs	https://doi.org/10.1103/PhysRevB.56.R2932
Publication status	Published - 1997

Bibliographical note

Copyright (1997) by the American Physical Society.

Keywords

ENERGY-GAP STRUCTURE
CONTACTS

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Kutchinsky, J., Taboryski, R. J., Kuhn, O., Sørensen, C. B., Lindelof, P. E., Kristensen, A., Hansen, J. B., Jacobsen, C. S., & Skov, J. (1997). Coherent diffusive transport mediated by Andreev reflections at V=Delta/e in a mesoscopic superconductor/semiconductor/superconductor junction. Physical Review B, 56(6), R2932-R2935. https://doi.org/10.1103/PhysRevB.56.R2932

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abstract = "We present experiments revealing a singularity in the coherent current across a superconductor/semiconductor/superconductor (SSmS) junction at the bias voltage corresponding to the superconducting energy gap V=Delta/e. The SSmS structure consists of highly doped GaAs with superconducting electrodes of aluminum configured as an interferometer. The phase-coherent component of the current is probed as the amplitude of h/2e vs magnetic-field oscillations in the differential resistance of the interferometer.",

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note = "Copyright (1997) by the American Physical Society.",

year = "1997",

doi = "10.1103/PhysRevB.56.R2932",

language = "English",

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T1 - Coherent diffusive transport mediated by Andreev reflections at V=Delta/e in a mesoscopic superconductor/semiconductor/superconductor junction

AU - Kutchinsky, Jonatan

AU - Taboryski, Rafael Jozef

AU - Kuhn, Oliver

AU - Sørensen, Claus B.

AU - Lindelof, Poul Erik

AU - Kristensen, Anders

AU - Hansen, Jørn Bindslev

AU - Jacobsen, Claus Schelde

AU - Skov, Johannes

PY - 1997

Y1 - 1997

N2 - We present experiments revealing a singularity in the coherent current across a superconductor/semiconductor/superconductor (SSmS) junction at the bias voltage corresponding to the superconducting energy gap V=Delta/e. The SSmS structure consists of highly doped GaAs with superconducting electrodes of aluminum configured as an interferometer. The phase-coherent component of the current is probed as the amplitude of h/2e vs magnetic-field oscillations in the differential resistance of the interferometer.

AB - We present experiments revealing a singularity in the coherent current across a superconductor/semiconductor/superconductor (SSmS) junction at the bias voltage corresponding to the superconducting energy gap V=Delta/e. The SSmS structure consists of highly doped GaAs with superconducting electrodes of aluminum configured as an interferometer. The phase-coherent component of the current is probed as the amplitude of h/2e vs magnetic-field oscillations in the differential resistance of the interferometer.

KW - ENERGY-GAP STRUCTURE

KW - CONTACTS

U2 - 10.1103/PhysRevB.56.R2932

DO - 10.1103/PhysRevB.56.R2932

M3 - Journal article

SN - 2469-9950

VL - 56

SP - R2932-R2935

JO - Physical Review B

JF - Physical Review B

IS - 6

ER -

Coherent diffusive transport mediated by Andreev reflections at V=Delta/e in a mesoscopic superconductor/semiconductor/superconductor junction

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