Transmission of phase information between electrons and holes in graphene
arXiv:1304.4878 · doi:10.1103/PhysRevB.87.081401
Abstract
We have studied quantum interference between electrons and holes in a split-ring gold interferometer with graphene arms, one of which contained a pn junction. The carrier type, the pn junction and the phase of the oscillations in a magnetic field were controlled by a top gate placed over one of the arms. We observe clear Aharonov-Bohm oscillations at the Dirac point and away from it, regardless of the carrier type in each arm. We also find clear oscillations when one arm of the interferometer contains a single pn junction, allowing us to study the interplay of Aharonov-Bohm effect and Klein tunneling.
5 pages, 4 figures
References in corpus (9)
- Electric Field Effect in Atomically Thin Carbon Films
- Graphene Nano-Ribbon Electronics
- Carrier transport in 2D graphene layers
- A self-consistent theory for graphene transport
- Aharonov-Bohm effect and broken valley-degeneracy in graphene rings
- Charge Transport and Inhomogeneity near the Charge Neutrality Point in Graphene
- Random resistor network model of minimal conductivity in graphene
- Inner and outer edge states in graphene rings: A numerical investigation
- Magnetic field asymmetry of mesocopic dc rectification in Aharonov Bohm rings
Cited by in corpus (10)
- Currents and pseudomagnetic fields in strained graphene rings
- Lattice-layer entanglement in Bernal-stacked bilayer graphene
- Lorentz force effects for graphene Aharonov-Bohm interferometers
- Fano resonances in hexagonal zigzag graphene rings under external magnetic flux
- Suppression of decoherence in a graphene monolayer ring
- Graphene lattice-layer entanglement under non-Markovian phase noise
- Aharonov-Bohm conductance oscillations and current equilibration in local n - p junctions in graphene
- Quantum Interference Noise Near the Dirac Point in Graphene
- Asymmetric scattering of Dirac electrons and holes in graphene
- Interplay between Aharonov-Bohm interference and parity selective tunneling in zigzag graphene nanoribbon rings