Gap anisotropy and tunneling currents

N. Lazarides; M. P. Sørensen

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

Gap anisotropy and tunneling currents

N. Lazarides
, M. P. Sørensen

Technical University of Denmark

Research output: Contribution to journal › Article › 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 Δ_k, 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	British English
Pages (from-to)	271-280
Number of pages	10
Journal	Mathematics and Computers in Simulation
Volume	40
Issue number	3-4
DOIs	https://doi.org/10.1016/0378-4754(95)00037-2
State	Published - Apr 1996

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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.",

author = "N. Lazarides and S{\o}rensen, \{M. P.\}",

note = "Funding Information: This work is supported by the EC science programme \textbackslash{}[Contract No. SCI/0229-C(AM)\textbackslash{}] and the Danish Research Council through contract No. 5210551-1 (supercomputing projects). NL acknowledges support from the Greek Secretariat for Research and Technology (FIENEA programmes). The authors would like to thank M.H. Pedersen and T. Schneider for helpful discussions.",

year = "1996",

month = apr,

doi = "10.1016/0378-4754(95)00037-2",

language = "British English",

volume = "40",

pages = "271--280",

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T1 - Gap anisotropy and tunneling currents

AU - Lazarides, N.

AU - Sørensen, M. P.

N1 - Funding Information: This work is supported by the EC science programme \[Contract No. SCI/0229-C(AM)\] and the Danish Research Council through contract No. 5210551-1 (supercomputing projects). NL acknowledges support from the Greek Secretariat for Research and Technology (FIENEA programmes). The authors would like to thank M.H. Pedersen and T. Schneider for helpful discussions.

PY - 1996/4

Y1 - 1996/4

N2 - 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.

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.

UR - https://www.scopus.com/pages/publications/0030124369

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

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

M3 - Article

AN - SCOPUS:0030124369

SN - 0378-4754

VL - 40

SP - 271

EP - 280

JO - Mathematics and Computers in Simulation

JF - Mathematics and Computers in Simulation

IS - 3-4

ER -

Gap anisotropy and tunneling currents

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