Specular Andreev reflection and its detection
arXiv:2104.11855 · doi:10.1103/PhysRevB.103.144518
Abstract
We propose a universal method to detect the specular Andreev reflection taking the simple two dimensional Weyl nodal-line semimetal-superconductor double-junction structure as an example. The quasiclassical quantization conditions are established for the energy levels of bound states formed in the middle semimetal along a closed path. The establishment of the conditions is completely based on the intrinsic character of the specularly reflected hole which has the same sign relation of its wave vector and group velocity with the incident electron. This brings about the periodic oscillation of conductance with the length of the middle semimetal, which is lack for the retro-Andreev reflected hole having the opposite sign relation with the incident electron. The positions of the conductance peaks and the oscillation period can be precisely predicted by the quantization conditions. Our detection method is irrespective of the details of the materials, which may promote the experimental detection of and further researches on the specular Andreev reflection as well as its applications in superconducting electronics.
10 pages, 6 figures
References in corpus (24)
- Proximity effects in superconductor-ferromagnet heterostructures
- Odd Triplet Superconductivity and Related Phenomena in Superconductor-Ferromagnet Structures
- Specular Andreev reflection in graphene
- Odd-frequency superconductivity
- Specular Interband Andreev Reflections in Graphene
- Theory of tunneling spectroscopy in superconducting Sr2RuO4
- Superconducting proximity effect through graphene from zero field to the Quantum Hall regime
- Temperature-dependence of spin-polarized transport in ferromagnet / unconventional superconductor junctions
- Discovery of Weyl nodal lines in a single-layer ferromagnet
- Two-dimensional Weyl nodal line semimetal in high Curie temperature d0 ferromagnet K2N monolayer
- Controllable Andreev retroreflection and specular Andreev reflection in a four-terminal graphene-superconductor hybrid system
- Topological nodal-line semimetals in ferromagnetic rare-earth-metal monohalides
- Specular Andreev Reflection in Inversion-symmetric Weyl-semimetals
- Andreev reflection near the Dirac point at Graphene - NbSe2 junction
- Double Andreev Reflections in Type-II Weyl Semimetal-Superconductor Junctions
- How to Distinguish between Specular and Retroconfigurations for Andreev Reflection in Graphene Rings
- Pure spin current in graphene NS structures
- Cross-over from retro to specular Andreev reflections in bilayer graphene
- The parity of specular Andreev reflection under mirror operation in zigzag graphene ribbon
- Specular Andreev reflection in thin films of topological insulators
- Enhanced Specular Andreev reflection in bilayer graphene
- 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
- Topological Nodal-line Semimetals in Two Dimensions with time-reversal symmetry breaking
Cited by in corpus (5)
- Orientation-dependent Josephson effect in spin-singlet superconductor/altermagnet/spin-triplet superconductor junctions
- Spin-polarized Specular Andreev Reflections in Altermagnets
- Spin-valley dependent double Andreev reflections in the proximitized graphene/superconductor junction
- Four-terminal graphene-superconductor thermal switch controlled by the superconducting phase difference
- Controllable Josephson diode effect, - transition and switch effect in the superconductor/two-dimensional Weyl nodal line semimetal/superconductor junctions