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arXiv · 0801.2446

Heat transport by Dirac fermions in normal/superconducting graphene junctions

Takehito Yokoyama·Jacob Linder·Asle Sudbo
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Abstract

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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Takehito Yokoyama, Jacob Linder, Asle Sudbo. 2008-01-16. Heat transport by Dirac fermions in normal/superconducting graphene junctions. https://doi.org/10.1103/physrevb.77.132503

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