Andreev reflection in bilayer graphene
Mesoscale and Nanoscale Physics
2009-11-13 v3
Abstract
We consider the conductance of a normal-superconductor junction in bilayer graphene in the framework of the Dirac-Bogoliubov-De-Gennes equation. A remarkable suppression of the conductance at voltages just below the superconducting gap is found. This can be understood in terms of the spinor structures of the electron and hole excitations, in particular the reflected valence band hole being orthogonal to the incoming electron at normal incidence. Minor changes in response to referee reports, references updated.
Cite
@article{arxiv.cond-mat/0701045,
title = {Andreev reflection in bilayer graphene},
author = {T. Ludwig},
journal= {arXiv preprint arXiv:cond-mat/0701045},
year = {2009}
}
Comments
9 pages, 8 figures