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Coherence-length dependence of fluctuations in the conductance of normal-superconducting interfaces

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Coherence-length dependence of fluctuations in the conductance of normal-superconducting interfaces. / Bruun, J.; Hui, V. C. ; Lambert, Colin.
In: Physical review B, Vol. 49, No. 6, 01.02.1994, p. 4010-4014.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Bruun, J, Hui, VC & Lambert, C 1994, 'Coherence-length dependence of fluctuations in the conductance of normal-superconducting interfaces', Physical review B, vol. 49, no. 6, pp. 4010-4014. https://doi.org/10.1103/PhysRevB.49.4010

APA

Bruun, J., Hui, V. C., & Lambert, C. (1994). Coherence-length dependence of fluctuations in the conductance of normal-superconducting interfaces. Physical review B, 49(6), 4010-4014. https://doi.org/10.1103/PhysRevB.49.4010

Vancouver

Bruun J, Hui VC, Lambert C. Coherence-length dependence of fluctuations in the conductance of normal-superconducting interfaces. Physical review B. 1994 Feb 1;49(6):4010-4014. doi: 10.1103/PhysRevB.49.4010

Author

Bruun, J. ; Hui, V. C. ; Lambert, Colin. / Coherence-length dependence of fluctuations in the conductance of normal-superconducting interfaces. In: Physical review B. 1994 ; Vol. 49, No. 6. pp. 4010-4014.

Bibtex

@article{b92e1bea778f45268ccecb9bee63b814,
title = "Coherence-length dependence of fluctuations in the conductance of normal-superconducting interfaces",
abstract = "We compute sample-to-sample fluctuations in the electrical conductance G(NS) of mesoscopic normal-superconducting boundaries. If the superconductor is clean and the normal conductor diffusive, the rms deviation deltaG(NS) is approximately a factor of 2 larger than the universal value obtained for normal disordered conductors. This is consistent with predictions of random matrix theories and recent numerical simulations. If the normal material is clean, but the superconductor diffusive, the boundary conductance fluctuation is greater than deltaG(NS), by an amount which increases as the superconducting coherence length decreases. For a diffusive normal material in contact with a dirty superconductor, deltaG(NS) is insensitive to weak disorder in the superconductor, but decreases in the extreme dirty limit, where quasiparticles within the superconductor become Anderson localized.",
author = "J. Bruun and Hui, {V. C.} and Colin Lambert",
year = "1994",
month = feb,
day = "1",
doi = "10.1103/PhysRevB.49.4010",
language = "English",
volume = "49",
pages = "4010--4014",
journal = "Physical review B",
issn = "0163-1829",
publisher = "AMER PHYSICAL SOC",
number = "6",

}

RIS

TY - JOUR

T1 - Coherence-length dependence of fluctuations in the conductance of normal-superconducting interfaces

AU - Bruun, J.

AU - Hui, V. C.

AU - Lambert, Colin

PY - 1994/2/1

Y1 - 1994/2/1

N2 - We compute sample-to-sample fluctuations in the electrical conductance G(NS) of mesoscopic normal-superconducting boundaries. If the superconductor is clean and the normal conductor diffusive, the rms deviation deltaG(NS) is approximately a factor of 2 larger than the universal value obtained for normal disordered conductors. This is consistent with predictions of random matrix theories and recent numerical simulations. If the normal material is clean, but the superconductor diffusive, the boundary conductance fluctuation is greater than deltaG(NS), by an amount which increases as the superconducting coherence length decreases. For a diffusive normal material in contact with a dirty superconductor, deltaG(NS) is insensitive to weak disorder in the superconductor, but decreases in the extreme dirty limit, where quasiparticles within the superconductor become Anderson localized.

AB - We compute sample-to-sample fluctuations in the electrical conductance G(NS) of mesoscopic normal-superconducting boundaries. If the superconductor is clean and the normal conductor diffusive, the rms deviation deltaG(NS) is approximately a factor of 2 larger than the universal value obtained for normal disordered conductors. This is consistent with predictions of random matrix theories and recent numerical simulations. If the normal material is clean, but the superconductor diffusive, the boundary conductance fluctuation is greater than deltaG(NS), by an amount which increases as the superconducting coherence length decreases. For a diffusive normal material in contact with a dirty superconductor, deltaG(NS) is insensitive to weak disorder in the superconductor, but decreases in the extreme dirty limit, where quasiparticles within the superconductor become Anderson localized.

U2 - 10.1103/PhysRevB.49.4010

DO - 10.1103/PhysRevB.49.4010

M3 - Journal article

VL - 49

SP - 4010

EP - 4014

JO - Physical review B

JF - Physical review B

SN - 0163-1829

IS - 6

ER -