Scattering and Interference in Epitaxial Graphene
Georgia Institute of Technology · National Institute of Standards and Technology · +1 more institution
Abstract
A single sheet of carbon, graphene, exhibits unexpected electronic properties that arise from quantum state symmetries, which restrict the scattering of its charge carriers. Understanding the role of defects in the transport properties of graphene is central to realizing future electronics based on carbon. Scanning tunneling spectroscopy was used to measure quasiparticle interference patterns in epitaxial graphene grown on SiC(0001). Energy-resolved maps of the local density of states reveal modulations on two different length scales, reflecting both intravalley and intervalley scattering. Although such scattering in graphene can be suppressed because of the symmetries of the Dirac quasiparticles, we show…
Citation impact
- FWCI
- 33.73
- Percentile
- 100%
- References
- 20
Authors
6- GMGregory M. Rutter
Georgia Institute of Technology, National Institute of Standards and Technology, Center for Nanoscale Science and Technology
- JCJason Crain
Georgia Institute of Technology, National Institute of Standards and Technology, Center for Nanoscale Science and Technology
- NPNathan P. Guisinger
Georgia Institute of Technology, National Institute of Standards and Technology, Center for Nanoscale Science and Technology
- TLT. Li
Georgia Institute of Technology, National Institute of Standards and Technology, Center for Nanoscale Science and Technology
- PNPhillip N. FirstCorresponding
Georgia Institute of Technology, National Institute of Standards and Technology, Center for Nanoscale Science and Technology
Topics & keywords
- Quasiparticle
- Graphene
- Scattering
- Condensed matter physics
- Homogeneous space
- Scanning tunneling microscope
- Observable
- Physics