Dirac-fermions and conductance-oscillations in (s,d)-wave superconductor/normal graphene junctions

Abstract

We investigate quantum transport in a normal/superconductor graphene heterostructure, including the possibility of an anisotropic pairing potential in the superconducting region. We find that under certain circumstances, the conductance displays an undamped, oscillatory behaviour as a function of applied bias voltage. Also, we investigate how the conductance spectra are affected by a d-wave pairing symmetry. These results combine unusual features of the electronic structure of graphene with the unconventional pairing symmetry found for instance in high-T_c superconductors.

4 pages, 2 figures. Accepted for publication in Phys. Rev. Lett

References in corpus (10)

• Electric Field Effect in Atomically Thin Carbon Films
• Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
• Chiral tunneling and the Klein paradox in graphene
• Bipolar supercurrent in graphene
• Specular Andreev reflection in graphene
• Quantum supercurrent transistors in carbon nanotubes
• Tunneling conductance of graphene NIS junctions
• Multiple Andreev Reflections in a Carbon Nanotube Quantum Dot
• A critical assessment of the pairing symmetry in NaxCoO2.yH2O
• Criterion for Dominance of Directional over Size Fluctuations in Destroying Order

Cited by in corpus (41)

• Andreev reflection and Klein tunneling in graphene
• Controllable spin transport in ferromagnetic graphene junctions
• Crossed Andreev reflection in a graphene bipolar transistor
• Quantum transport through a graphene nanoribbon-superconductor junction
• Tunneling conductance in $s$- and d-wave superconductor-graphene junctions: Extended Blonder-Tinkham-Klapwijk formalism
• A supercurrent switch in graphene $\pi$-junctions
• Proximity coupling in superconductor-graphene heterostructures
• Andreev reflection in graphene nanoribbons
• Josephson current in graphene: the role of unconventional pairing symmetries
• d+id'-wave Superconducting States in Graphene
• Detecting entangled states in graphene via crossed Andreev reflection
• Tunable Klein-like tunneling of high-temperature superconducting pairs into graphene
• Critical Josephson current in ballistic superconductor-graphene systems
• Tunneling Planar Hall Effect in Topological Insulators: Spin-Valves and Amplifiers
• Spin and valley transports in junctions of Dirac fermions
• Tunneling conductance of graphene ferromagnet-insulator-superconductor junctions
• Dirac Green's function approach to graphene-superconductor junctions with well defined edges
• Heat transport by Dirac fermions in normal/superconducting graphene junctions
• Proximity induced interface bound states in superconductor-graphene junctions
• Thermal Transport Properties of Graphene-Based F/S/F Junctions
• Signatures of d-Wave Symmetry on Thermal Dirac Fermions in Graphene-Based F/I/d Junctions
• Thermal conductance by Dirac fermions in a normal-insulator-superconductor junction of silicene
• Quantum charge pumping through resonant crossed Andreev reflection in superconducting hybrid junction of Silicene
• Subgap states in two dimensional spectroscopy of unconventional superconductors using graphene
• Anisotropic Andreev Reflection and Josephson Effect in Ballistic Phosphorene
• Long-Range Propagation and Interference of $d$-wave Superconducting Pairs in Graphene
• Resonant tunneling through superconducting double barrier structures in graphene
• Andreev spectroscopy of doped HgTe quantum wells
• Superconducting proximity effect in $d$-wave cuprate/ graphene heterostructures
• Spin-flip reflection at the normal metal-spin superconductor interface
• Spin-valley dependent double Andreev reflections in the proximitized graphene/superconductor junction
• Superconducting proximity effect on a two-dimensional Dirac electron system
• How to detect a genuine quantum pump effect in graphene?
• $\pi$-junction qubit in monolayer graphene
• Andreev and normal reflections in gapped bilayer graphene-superconductor junctions
• Supercurrent reversal in Josephson junctions based on bilayer graphene flakes
• Persistent currents in absence of magnetic field in graphene nanorings: The ambiguous role of inter valley scattering
• Electrical and thermal transport in a twisted heterostructure of transition metal dichalcogenide and CrI${}_3$ connected to a superconductor
• Pseudodiffusive transmission of nodal Dirac fermions through a clean d-wave superconductor
• Graphene: Junctions and STM Spectra
• Anisotropic angle-dependent Andreev reflection at the ferromagnet/superconductor junction on the surface of topological insulators