Graphene based quantum dots
arXiv:0911.4024 · doi:10.1088/0953-8984/22/30/302001
Abstract
Laterally localized electronic states are identified on a single layer of graphene on ruthenium. The individual states are separated by 3 nm and comprise regions of about 90 carbon atoms. This constitutes a quantum dot array, evidenced by quantum well resonances that are modulated by the corrugation of the graphene layer. The quantum well resonances are strongest on the isolated "hill" regions where the graphene is decoupled from the surface. This peculiar nanostructure is expected to become important for single electron physics where it bridges zero-dimensional molecule-like and two-dimensional graphene on a highly regular lattice.
17pages, 4figures, 1table
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Cited by in corpus (7)
- Graphene quantum dots embedded in hexagonal boron nitride sheets
- Epitaxial Growth of Large-area Bilayer Graphene on Ru(0001)
- Comment on "Potential Energy Landscape for Hot Electrons in Periodically Nanostructured Graphene"
- Energy splitting of image states induced by the surface potential corrugation of InAs(111)A
- Electronic structure of graphene: (nearly) free electrons bands vs. tight-binding bands
- Graphene quantum dots probed by scanning tunneling spectroscopy and transport spectroscopy after local anodic oxidation
- Image-potential states on a 2D Gr-ferromagnet hybrid: enhancing spin and stacking sensing