Andreev reflection in bilayer graphene
- 18 May 2007
- journal article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 75 (19)
- https://doi.org/10.1103/physrevb.75.195322
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.Comment: 9 pages, 8 figureKeywords
Other Versions
This publication has 31 references indexed in Scilit:
- Quantum Transport of Massless Dirac FermionsPhysical Review Letters, 2007
- Electron transport in disordered graphenePhysical Review B, 2006
- Robust Transport Properties in GraphenePhysical Review Letters, 2006
- Effect of Disorder on Transport in GraphenePhysical Review Letters, 2006
- Low-Energy Theory of Disordered GraphenePhysical Review Letters, 2006
- Sub-Poissonian Shot Noise in GraphenePhysical Review Letters, 2006
- Zitterbewegung, chirality, and minimal conductivity in grapheneZeitschrift für Physik B Condensed Matter, 2006
- Unconventional quantum Hall effect and Berry’s phase of 2π in bilayer grapheneNature Physics, 2006
- Two-dimensional gas of massless Dirac fermions in grapheneNature, 2005
- Experimental observation of the quantum Hall effect and Berry's phase in grapheneNature, 2005