Gap anisotropy and tunneling currents

N. Lazarides; Mads Peter Sørensen

doi:10.1016/0378-4754(95)00037-2

Gap anisotropy and tunneling currents

N. Lazarides, Mads Peter Sørensen

University of Crete

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The tunneling Hamiltonian formalism is applied to calculate the tunneling currents through a small superconducting tunnel junction. The formalism is extended to nonconstant tunneling matrix elements. The electrodes of the junction are assumed to consist of high critical temperature superconductors. They are described by a BCS-type model with anisotropic gap parameter Δk, to account for the high anisotropy observed in these materials. The numerical computation of the tunneling currents reveals new qualitative features which could explain many puzzling questions arising from recent experimental results.

Original language	English
Journal	Mathematics and Computers in Simulation
Volume	40
Issue number	3-4
Pages (from-to)	271-280
ISSN	0378-4754
DOIs	https://doi.org/10.1016/0378-4754(95)00037-2
Publication status	Published - 1996
Event	3rd IMACS International Conference on Computational Physics - Lyngby, Denmark Duration: 1 Aug 1994 → 4 Aug 1994

Conference

Conference	3rd IMACS International Conference on Computational Physics
Country/Territory	Denmark
City	Lyngby
Period	01/08/1994 → 04/08/1994

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10.1016/0378-4754(95)00037-2

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title = "Gap anisotropy and tunneling currents",

abstract = "The tunneling Hamiltonian formalism is applied to calculate the tunneling currents through a small superconducting tunnel junction. The formalism is extended to nonconstant tunneling matrix elements. The electrodes of the junction are assumed to consist of high critical temperature superconductors. They are described by a BCS-type model with anisotropic gap parameter Δk, to account for the high anisotropy observed in these materials. The numerical computation of the tunneling currents reveals new qualitative features which could explain many puzzling questions arising from recent experimental results.",

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AU - Lazarides, N.

AU - Sørensen, Mads Peter

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AB - The tunneling Hamiltonian formalism is applied to calculate the tunneling currents through a small superconducting tunnel junction. The formalism is extended to nonconstant tunneling matrix elements. The electrodes of the junction are assumed to consist of high critical temperature superconductors. They are described by a BCS-type model with anisotropic gap parameter Δk, to account for the high anisotropy observed in these materials. The numerical computation of the tunneling currents reveals new qualitative features which could explain many puzzling questions arising from recent experimental results.

U2 - 10.1016/0378-4754(95)00037-2

DO - 10.1016/0378-4754(95)00037-2

M3 - Journal article

SN - 0378-4754

VL - 40

SP - 271

EP - 280

JO - Mathematics and Computers in Simulation

JF - Mathematics and Computers in Simulation

IS - 3-4

T2 - 3rd IMACS International Conference on Computational Physics

Y2 - 1 August 1994 through 4 August 1994

ER -

Gap anisotropy and tunneling currents

Abstract

Conference

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