Local superconducting coupling in the strong-localization limit of ultrathin granular metal films

D. B. Haviland; H. M. Jaeger; B. G. Orr; A. M. Goldman

doi:10.1103/PhysRevB.40.719

Local superconducting coupling in the strong-localization limit of ultrathin granular metal films

D. B. Haviland, H. M. Jaeger, B. G. Orr, A. M. Goldman

Physics and Astronomy (Twin Cities)

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

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Abstract

The onset of fluctuations into the superconducting state, as identified by the appearance of a local minimum in the resistance versus temperature, is found to be coincident with the characteristic activation energy of normal-state conduction falling to a value of the order of the superconducting energy gap of the material at T=0. The model of conduction used is variable-range hopping with a Coulomb gap, appropriate to granular metals.

Original language	English (US)
Pages (from-to)	719-722
Number of pages	4
Journal	Physical Review B
Volume	40
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.40.719
State	Published - Jan 1 1989

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10.1103/PhysRevB.40.719

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abstract = "The onset of fluctuations into the superconducting state, as identified by the appearance of a local minimum in the resistance versus temperature, is found to be coincident with the characteristic activation energy of normal-state conduction falling to a value of the order of the superconducting energy gap of the material at T=0. The model of conduction used is variable-range hopping with a Coulomb gap, appropriate to granular metals.",

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AU - Orr, B. G.

AU - Goldman, A. M.

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N2 - The onset of fluctuations into the superconducting state, as identified by the appearance of a local minimum in the resistance versus temperature, is found to be coincident with the characteristic activation energy of normal-state conduction falling to a value of the order of the superconducting energy gap of the material at T=0. The model of conduction used is variable-range hopping with a Coulomb gap, appropriate to granular metals.

AB - The onset of fluctuations into the superconducting state, as identified by the appearance of a local minimum in the resistance versus temperature, is found to be coincident with the characteristic activation energy of normal-state conduction falling to a value of the order of the superconducting energy gap of the material at T=0. The model of conduction used is variable-range hopping with a Coulomb gap, appropriate to granular metals.

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Local superconducting coupling in the strong-localization limit of ultrathin granular metal films

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