Tuning the electronic structure of graphene by ion irradiation
arXiv:0901.3021 · doi:10.1103/PhysRevB.78.233407
Abstract
Mechanically exfoliated graphene layers deposited on SiO2 substrate were irradiated with Ar+ ions in order to experimentally study the effect of atomic scale defects and disorder on the low-energy electronic structure of graphene. The irradiated samples were investigated by scanning tunneling microscopy and spectroscopy measurements, which reveal that defect sites, besides acting as scattering centers for electrons through local modification of the on-site potential, also induce disorder in the hopping amplitudes. The most important consequence of the induced disorder is the substantial reduction in the Fermi velocity, revealed by bias-dependent imaging of electron-density oscillations observed near defect sites.
References in corpus (14)
- Doping graphene with metal contacts
- Electronic Properties of Disordered Two-Dimensional Carbon
- Strong suppression of weak (anti)localization in graphene
- Disorder Induced Localized States in Graphene
- High-Resolution Scanning Tunneling Microscopy Imaging of Mesoscopic Graphene Sheets on an Insulating Surface
- Vacancy induced magnetism in graphene and graphene ribbons
- Intervalley scattering, long-range disorder, and effective time reversal symmetry breaking in graphene
- Modeling disorder in graphene
- Friedel oscillations, impurity scattering and temperature dependence of resistivity in graphene
- Experimental Evidence for Two-Dimensional Magnetic Order in Proton Bombarded Graphite
- Phonon-induced many-body renormalization of graphene electronic properties
- One-Dimensional Energy Dispersion of Single-Walled Carbon Nanotubes by Resonant Electron Scattering
- Electron waves in chemically substituted graphene
- Quasiparticle properties of graphene in the presence of disorder
Cited by in corpus (30)
- Properties of Graphene: A Theoretical Perspective
- Effect of oxygen plasma etching on graphene studied with Raman spectroscopy and electronic transport
- Effect of electron-beam irradiation on graphene field effect devices
- Graphene nanoflakes - structural and electronic properties
- Symmetry of standing waves generated by a point defect in epitaxial graphene
- Thermal stability study of nitrogen functionalities in a graphene network
- Ion irradiation tolerance of graphene as studied by atomistic simulations
- Electrical transport and low-temperature scanning tunneling microscopy of microsoldered graphene
- Anomalous stopping and charge transfer in proton-irradiated graphene
- Localization of massless Dirac particles via spatial modulations of the Fermi velocity
- Structural manipulation of the graphene/metal-interface with Ar+ irradiation
- Vacancy mediated magnetization and healing of a graphene monolayer
- Preferential antiferromagnetic coupling of vacancies in graphene on SiO_2: Electron spin resonance and scanning tunneling spectroscopy
- Detecting swift heavy ion irradiation effects with graphene
- The Electronic States of a Double Carbon Vacancy Defect in Pyrene: A Model Study for Graphene
- Application of sodium-ion-based solid electrolyte in electrostatic tuning of carrier density in graphene
- Gate-dependent vacancy diffusion in graphene
- The role of pressure on the magnetism of bilayer graphene
- Transport in graphene nanostructures with spatially modulated gap and potential
- Tip induced doping effects in local tunnel spectra of graphene
- Inhomogeneous screening of gate electric field by interface states in graphene FETs
- Layer compression and enhanced optical properties of few-layer graphene nanosheets induced by ion irradiation
- Scaling behavior of disordered lattice fermions in two dimensions
- Crystallogprahically selective nanopatterning of graphene on SiO2
- Unzipping graphene: Extendend defects by ion irradiation
- Device Chemistry of Graphene Transistors
- Topological transition induced by selective random defects on a honeycomb lattice
- Thermodefect voltage in graphene nanoribbon junctions
- Configuration- and concentration-dependent electronic properties of hydrogenated graphene
- Chemical Bondings Induced Rich Electronic Properties of Oxygen Absorbed Few-layer Graphenes