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- Title
Dispersiones de Andreev no Locales en Películas Superconductoras con Simetrías s y d.
- Authors
Gomez, S.; Herrera, W. J.; Niño, J. V.
- Abstract
In this work the nonlocal Andreev dispersions are studied, these appear in superconductor junctions of double insulating barrier N1ISIN2 (N: Metal in the normal state, S: Superconductor, I: Insulator) when an electron that comes from normal region N1 is scattered as a hole in the normal region N2. We consider low and high Tc superconductors with s and d wave symmetry of the pair potential. In order to study the behaviour of nonlocal transmission coefficients electron - electron and electron -- hole, the Bogoliubov de Gennes equations for this junction are solved. We analyze the dependence of the transmission coefficients with in the thickness of the superconducting layer and discuss how these results can be used in measurements of crossed differential conductance in these systems.
- Subjects
SUPERCONDUCTORS; DISPERSION (Chemistry); ELECTRONS; EQUATIONS; JOSEPHSON junctions
- Publication
Revista Colombiana de Física, 2009, Vol 41, Issue 3, p563
- ISSN
0120-2650
- Publication type
Article