The parity of specular Andreev reflection under mirror operation in zigzag graphene ribbon
arXiv:1011.5082 · doi:10.1103/PhysRevB.83.205418
Abstract
It is known that the parity of reflection amplitude can either be even or odd under the mirror operation. Up to now, all the parities of reflection amplitude in the one-mode energy region are even under the mirror operation. In this paper, we give an example of odd parity for Andreev reflection (AR) in a three-terminal graphene-supercondutor hybrid systems. We found that the parity is even for the Andreev retroreflection (ARR) and odd for specular Andreev reflection (SAR). We attribute this remarkable phenomenon to the distinct topology of the band structure of graphene and the specular Andreev reflection involving two energy bands with different parity symmetry. As a result of odd parity of SAR, the SAR probability of a four-terminal system with two superconducting leads (two reflection interfaces) can be zero even when the system is asymmetric due to the quantum interference of two ARs.
11 pages, 3 figures
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Cited by in corpus (11)
- Crossed Andreev effects in two-dimensional quantum Hall systems
- Double Andreev Reflections in Type-II Weyl Semimetal-Superconductor Junctions
- The influence of anti-chiral edge states on Andreev reflection in graphene-superconductor junction
- Double Andreev reflections and double normal reflections in nodal-line semimetal-superconductor junctions
- Spin-flip reflection at the normal metal-spin superconductor interface
- Spin-valley dependent double Andreev reflections in the proximitized graphene/superconductor junction
- Specular Andreev reflection and its detection
- Four-terminal graphene-superconductor thermal switch controlled by the superconducting phase difference
- Double refraction and spin splitter in a normal-hexagonal semiconductor junction
- Specular-Andreev reflection and Andreev interference in an Ising superconductor junction
- Transport through Nodal Surface Semimetal-Superconductor junction in absence/presence of light irradiation