Anomalous thermal phenomena in a temperature biased graphene-based N/I/p-wave SC junction
| Autor: | Ting-Min Liu, Ya-Jun Wei, Yongchun Tao |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Superconductivity Physics Condensed matter physics Graphene Dirac (software) General Engineering General Physics and Astronomy Non-equilibrium thermodynamics 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences law.invention Thermal conductivity law Condensed Matter::Superconductivity 0103 physical sciences Thermal Interfacial thermal resistance 0210 nano-technology Unconventional superconductor |
| Zdroj: | Applied Physics Express. 13:083004 |
| ISSN: | 1882-0786 1882-0778 |
| DOI: | 10.35848/1882-0786/aba31e |
| Popis: | We investigate the nonequilibrium energy transport across a graphene-based unconventional superconductor (SC) hybrid structure with a barrier region sandwiched between normal and superconducting regions, which is evaluated within an extended Dirac Bogoliubov-de Gennes formalism. Three different scenarios of the hybrids having p-wave triplet SCs with (i) px-, (ii) py-, and (iii) unitary chiral px + ipy-parings, are involved. Between them, the thermal conductance, asymmetric Kapitza resistance, and negative differential thermal conductance, respectively, characteristic by much different anomalous thermal properties, are uncovered. More interestingly, thermal energies Klein tunneling also turns up. |
| Databáze: | OpenAIRE |
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