Andreev levels in a single-channel conductor

Publication: Research - peer-reviewJournal article – Annual report year: 2001

Standard

Andreev levels in a single-channel conductor. / Titov, M.; Mortensen, Asger; Schomerus, H.; Beenakker, C.W.J.

In: Physical Review B Condensed Matter, Vol. 64, No. 13, 2001, p. 134206.

Publication: Research - peer-reviewJournal article – Annual report year: 2001

Harvard

Titov, M, Mortensen, A, Schomerus, H & Beenakker, CWJ 2001, 'Andreev levels in a single-channel conductor' Physical Review B Condensed Matter, vol 64, no. 13, pp. 134206., 10.1103/PhysRevB.64.134206

APA

CBE

Titov M, Mortensen A, Schomerus H, Beenakker CWJ. 2001. Andreev levels in a single-channel conductor. Physical Review B Condensed Matter. 64(13):134206. Available from: 10.1103/PhysRevB.64.134206

MLA

Vancouver

Author

Titov, M.; Mortensen, Asger; Schomerus, H.; Beenakker, C.W.J. / Andreev levels in a single-channel conductor.

In: Physical Review B Condensed Matter, Vol. 64, No. 13, 2001, p. 134206.

Publication: Research - peer-reviewJournal article – Annual report year: 2001

Bibtex

@article{771b00242b28404f8fb11005456f862a,
title = "Andreev levels in a single-channel conductor",
keywords = "STATES, WAVE LOCALIZATION",
publisher = "American Physical Society",
author = "M. Titov and Asger Mortensen and H. Schomerus and C.W.J. Beenakker",
note = "Copyright (2001) American Physical Society",
year = "2001",
doi = "10.1103/PhysRevB.64.134206",
volume = "64",
number = "13",
pages = "134206",
journal = "Physical Review B Condensed Matter",
issn = "0163-1829",

}

RIS

TY - JOUR

T1 - Andreev levels in a single-channel conductor

A1 - Titov,M.

A1 - Mortensen,Asger

A1 - Schomerus,H.

A1 - Beenakker,C.W.J.

AU - Titov,M.

AU - Mortensen,Asger

AU - Schomerus,H.

AU - Beenakker,C.W.J.

PB - American Physical Society

PY - 2001

Y1 - 2001

N2 - We calculate the subgap density of states of a disordered single-channel normal metal connected to a superconductor at one end (normal-metal-superconductor junction) or at both ends [superconductor-normal-metal-superconductor (SNS) junction]. The probability distribution of the energy of a bound state (Andreev level) is broadened by disorder. In the SNS case the twofold degeneracy of the Andreev levels is removed by disorder leading to a splitting in addition to the broadening. The distribution of the splitting is given precisely by Wigner's surmise from random-matrix theory. For strong disorder the mean density of states is largely unaffected by the proximity to the superconductor, because of localization, except in a narrow energy region near the Fermi level, where the density of states is suppressed with a log-normal tail.

AB - We calculate the subgap density of states of a disordered single-channel normal metal connected to a superconductor at one end (normal-metal-superconductor junction) or at both ends [superconductor-normal-metal-superconductor (SNS) junction]. The probability distribution of the energy of a bound state (Andreev level) is broadened by disorder. In the SNS case the twofold degeneracy of the Andreev levels is removed by disorder leading to a splitting in addition to the broadening. The distribution of the splitting is given precisely by Wigner's surmise from random-matrix theory. For strong disorder the mean density of states is largely unaffected by the proximity to the superconductor, because of localization, except in a narrow energy region near the Fermi level, where the density of states is suppressed with a log-normal tail.

KW - STATES

KW - WAVE LOCALIZATION

UR - http://link.aps.org/doi/10.1103/PhysRevB.64.134206

U2 - 10.1103/PhysRevB.64.134206

DO - 10.1103/PhysRevB.64.134206

JO - Physical Review B Condensed Matter

JF - Physical Review B Condensed Matter

SN - 0163-1829

IS - 13

VL - 64

SP - 134206

ER -