Phase dependence of thermal transport in graphene Josephson junctions
Chuan-Shuai Huang
DOI 10.1103/PhysRevB.108.195433 · Physical Review B
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Abstract
We study theoretically the phase-dependent thermal transport in graphene-based Josephson junctions and highlight the role of Klein-like tunneling in the thermal energy transmission. We compute the thermal conductance for both short and long junctions by solving the Dirac-Bogoliubov–de Gennes equation. Numerical results show that the thermal conductance contains distinctive signatures of the existence of Andreev bound states, enabling us to identify different superconducting pairing symmetries in graphene, including s-, dx2−y2-, dxy-, px-, and py-wave symmetries. Importantly, our results may pave the way for applications of graphene in the field of Josephson heat interferometers.
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