Tunneling Spectroscopy of Graphene using Planar Pb Probes
arXiv:1210.4987 · doi:10.1063/1.4775600
Abstract
We show that evaporating lead (Pb) directly on graphene can create high-yield, high-quality tunnel probes, and we demonstrate high magnetic field/low temperature spectroscopy using these probes. Comparisons of Pb, Al and Ti/Au probes shows that after oxidation a well-formed self-limited tunnel barrier is created only between the Pb and the graphene. Tunneling spectroscopy using the Pb probes manifests energy-dependent features such as scattering resonances and localization behavior, and can thus be used to probe the microscopic electronics of graphene.
14 pages, 4 figures submitted to Nano Letters
References in corpus (16)
- Electric Field Effect in Atomically Thin Carbon Films
- Ultrahigh electron mobility in suspended graphene
- Suspended Graphene: a bridge to the Dirac point
- Spatially Resolving Spin-split Edge States of Chiral Graphene Nanoribbons
- Scanning Tunneling Spectroscopy of Graphene on Graphite
- Giant Phonon-induced Conductance in Scanning Tunneling Spectroscopy of Gate-tunable Graphene
- Edge state on hydrogen-terminated graphite edges investigated by scanning tunneling microscopy
- Electronic properties of graphene: a perspective from scanning tunneling microscopy and magneto-transport
- Evolution of Microscopic Localization in Graphene in a Magnetic Field from Scattering Resonances to Quantum Dots
- Transport Through Andreev Bound States in a Graphene Quantum Dot
- Quantized Landau level spectrum and its density dependence
- Tunneling Spectroscopy of Graphene-Boron Nitride Heterostructures
- Bolometric response in graphene based superconducting tunnel junctions
- Ultrathin Oxide Films by Atomic Layer Deposition on Graphene
- Transport in Graphene Tunnel Junctions
- Evidence for incompressible states in a metal graphene tunnel junction in high magnetic field