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Coherent transport through a T-shaped mesoscopic superconducting junction

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Coherent transport through a T-shaped mesoscopic superconducting junction. / Allsopp, N. K. ; Lambert, Colin.
In: Physical review B, Vol. 50, No. 6, 01.08.1994, p. 3972-3976.

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Allsopp NK, Lambert C. Coherent transport through a T-shaped mesoscopic superconducting junction. Physical review B. 1994 Aug 1;50(6):3972-3976. doi: 10.1103/PhysRevB.50.3972

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Allsopp, N. K. ; Lambert, Colin. / Coherent transport through a T-shaped mesoscopic superconducting junction. In: Physical review B. 1994 ; Vol. 50, No. 6. pp. 3972-3976.

Bibtex

@article{83519b90fad7459e9d64cdc65aa476b1,
title = "Coherent transport through a T-shaped mesoscopic superconducting junction",
abstract = "We highlight a ''transverse'' interference effect, arising from the coupling between electrons and holes, induced by a superconducting island in contact with a normal metal. As an example we compute the electrical conductance G of a T-shaped mesoscopic sample, formed by joining a horizontal bar of normal metal to a vertical leg of the same material. With a superconducting island located on the vertical leg and the current flowing horizontally, we examine the dependence of G on the distance L of the island from the horizontal bar. Of particular interest is the differential conductance G (E) at an applied voltage E = Ev, which due to quantum interference between electrons and Andreev reflected holes, is predicted to oscillate with both L and E. For a system with a spherical Fermi surface, the period of oscillation with E is piE(F)/k(F)L and with L is piE(F)/k(F)E, where E(F) is the Fermi energy and k(F) the Fermi wave vector.",
author = "Allsopp, {N. K.} and Colin Lambert",
year = "1994",
month = aug,
day = "1",
doi = "10.1103/PhysRevB.50.3972",
language = "English",
volume = "50",
pages = "3972--3976",
journal = "Physical review B",
issn = "1098-0121",
publisher = "AMER PHYSICAL SOC",
number = "6",

}

RIS

TY - JOUR

T1 - Coherent transport through a T-shaped mesoscopic superconducting junction

AU - Allsopp, N. K.

AU - Lambert, Colin

PY - 1994/8/1

Y1 - 1994/8/1

N2 - We highlight a ''transverse'' interference effect, arising from the coupling between electrons and holes, induced by a superconducting island in contact with a normal metal. As an example we compute the electrical conductance G of a T-shaped mesoscopic sample, formed by joining a horizontal bar of normal metal to a vertical leg of the same material. With a superconducting island located on the vertical leg and the current flowing horizontally, we examine the dependence of G on the distance L of the island from the horizontal bar. Of particular interest is the differential conductance G (E) at an applied voltage E = Ev, which due to quantum interference between electrons and Andreev reflected holes, is predicted to oscillate with both L and E. For a system with a spherical Fermi surface, the period of oscillation with E is piE(F)/k(F)L and with L is piE(F)/k(F)E, where E(F) is the Fermi energy and k(F) the Fermi wave vector.

AB - We highlight a ''transverse'' interference effect, arising from the coupling between electrons and holes, induced by a superconducting island in contact with a normal metal. As an example we compute the electrical conductance G of a T-shaped mesoscopic sample, formed by joining a horizontal bar of normal metal to a vertical leg of the same material. With a superconducting island located on the vertical leg and the current flowing horizontally, we examine the dependence of G on the distance L of the island from the horizontal bar. Of particular interest is the differential conductance G (E) at an applied voltage E = Ev, which due to quantum interference between electrons and Andreev reflected holes, is predicted to oscillate with both L and E. For a system with a spherical Fermi surface, the period of oscillation with E is piE(F)/k(F)L and with L is piE(F)/k(F)E, where E(F) is the Fermi energy and k(F) the Fermi wave vector.

U2 - 10.1103/PhysRevB.50.3972

DO - 10.1103/PhysRevB.50.3972

M3 - Journal article

VL - 50

SP - 3972

EP - 3976

JO - Physical review B

JF - Physical review B

SN - 1098-0121

IS - 6

ER -