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Andreev reflection in hybrid [formula omitted] lattices junction.

Authors :
Lyu, Kai-Yi
Li, Yu-Xian
Source :
Solid State Communications. Jun2024, Vol. 384, pN.PAG-N.PAG. 1p.
Publication Year :
2024

Abstract

We explore local Andreev reflection and crossed Andreev reflection in a normal metal (N)–superconductor (S)–normal metal (N) hybrid junction based on the α − T 3 lattice. Initially, both the left and right sections feature dice lattice structures (α = 1). We compute probabilities for electron reflection, local Andreev reflection, electron transmission, and crossed Andreev reflection, as well as local conductance, electron transmission conductance, and crossed Andreev reflection conductance. Subsequently, we analyze structures with the left side featuring dice lattice and the right side graphene (α = 0), as well as the reverse configuration. Our findings reveal that crossed Andreev reflections are more prevalent in the graphene–superconductor–dice lattice (GSD) junction, particularly with moderate superconducting region lengths, larger electron incidence angles, and lower electron incidence energy. • Investigate local Andreev reflection and crossed Andreev reflection within a normal metal-superconductor-normal metal hybrid junction based on the α − T 3 lattice. • Explore scattering processes in NSN hybridized junctions, with both the left and right sections featuring a dice lattice structure (α = 1). • Subsequently, we evaluate two configurations: one with dice lattice on the left side and graphene (α = 0) on the right side, and the reverse configuration. • The transport properties of these three junctions are systematically compared. [ABSTRACT FROM AUTHOR]

Subjects

Subjects :
*ANDREEV reflection
*GRAPHENE

Details

Language :
English
ISSN :
00381098
Volume :
384
Database :
Academic Search Index
Journal :
Solid State Communications
Publication Type :
Academic Journal
Accession number :
176390736
Full Text :
https://doi.org/10.1016/j.ssc.2024.115489