Heat transport by Dirac fermions in normal/superconducting graphene junctions

Details Heat transport by Dirac fermions in normal/superconducting graphene junctions Heat transport by Dirac fermions in normal/superconducting graphene junctions

2008-01-16

arxiv.org/abs/0801.2446v1

Phys. Rev. B 77, 132503 (2008)

Physics

Condensed Matter

Superconductivity

4 pages, 3 figures

Scientific paper

10.1103/PhysRevB.77.132503

We study heat transport in normal/superconducting graphene junctions. We find that while the thermal conductance displays the usual exponential dependence on temperature, reflecting the s-wave symmetry of the superconductor, it exhibits an unusual oscillatory dependence on the potential height or the length of the barrier region. This oscillatory dependence stems from the emergent low-energy relativistic nature of fermions in graphene, essentially different from the result in conventional normal metal/superconductor junctions.

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