Correspondence between Andreev reflection and Klein tunneling in bipolar graphene

Details Correspondence between Andreev reflection and Klein tunneling in bipolar graphene Correspondence between Andreev reflection and Klein tunneling in bipolar graphene

2007-10-05

arxiv.org/abs/0710.1309v2

Phys.Rev.B 77, 075409 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 7 figures; much expanded version, with a revised title, test of the analytics by computer simulation, temperature dep

Scientific paper

10.1103/PhysRevB.77.075409

Andreev reflection at a superconductor and Klein tunneling through an n-p junction in graphene are two processes that couple electrons to holes -- the former through the superconducting pair potential Delta and the latter through the electrostatic potential U. We derive that the energy spectra in the two systems are identical, at low energies E<

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