Fine structure of the local pseudogap and Fano effect for superconducting electrons near a zigzag graphene edge
arXiv:0707.3048 · doi:10.1103/PhysRevB.76.235409
Abstract
Motivated by recent scanning tunneling experiments on zigzag-terminated graphene this paper investigates an interplay of evanescent and extended quasiparticle states in the local density of states (LDOS) near a zigzag edge using the Green's function of the Dirac equation. A model system is considered where the local electronic structure near the edge influences transport of both normal and superconducting electrons via a Fano resonance. In particular, the temperature enhancement of the critical Josephson current and 0-pi transitions are predicted.
arXiv comment5 pages, 5 figures, to be published in Phys. Rev. B
References in corpus (34)
- Two-Dimensional Gas of Massless Dirac Fermions in Graphene
- Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
- Spintronics: Fundamentals and applications
- Proximity effects in superconductor-ferromagnet heterostructures
- Landau level degeneracy and quantum Hall effect in a graphite bilayer
- Electronic Properties of Disordered Two-Dimensional Carbon
- Electronic States of Graphene Nanoribbons
- Unconventional Integer Quantum Hall effect in graphene
- Electronic and Magnetic Properties of Nanographite Ribbons
- Coupling of two superconductors through a ferromagnet : evidence for a pi-junction
- Veselago Lens for Electrons: Focusing and Caustics in Graphene p-n Junctions
- Quantum-limited shot noise in graphene
- Quantum Hall Ferromagnetism in Graphene
- Specular Andreev reflection in graphene
- Observation of zigzag and armchair edges of graphite using scanning tunneling microscopy and spectroscopy
- Tuning of the Fano Effect through a Quantum Dot in an Aharonov-Bohm Interferometer
- Scanning tunneling microscopy and spectroscopy of the electronic local density of states of graphite surfaces near monoatomic step edges
- Supercurrent reversal in quantum dots
- Edge state on hydrogen-terminated graphite edges investigated by scanning tunneling microscopy
- Effect of Disorder on Transport in Graphene
- Josephson effect in ballistic graphene
- Ge/Si nanowire mesoscopic Josephson junctions
- Coulomb-Modified Fano Resonance in a One-Lead Quantum Dot
- Tuning the conductance of a molecular switch
- Zero-Conductance Resonances due to Flux States in Nanographite Ribbon Junctions
- Spontaneous supercurrent induced by ferromagnetic pi-junctions
- Electron transport in single wall carbon nanotube weak links in the Fabry-Perot regime
- Spin filters with Fano dots
- Anomalous temperature dependence of the supercurrent through a chaotic Josephson junction
- Fano effect in a ring-dot system with tunable coupling
- Josephson effect in mesoscopic graphene strips with finite width
- Spin filter using a semiconductor quantum ring side-coupled to a quantum wire
- Gate-controlled superconductivity in diffusive multiwalled carbon nanotube
- Effect of magnetic pair breaking on Andreev bound states and resonant supercurrent in quantum dot Josephson junctions
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