Gaps tunable by electrostatic gates in strained graphene
arXiv:1012.0939 · doi:10.1103/PhysRevB.83.195436
Abstract
We show that when the pseudomagnetic fields created by long wavelength deformations are appropriately coupled with a scalar electric potential, a significant energy gap can emerge due to the formation of a Haldane state. Ramifications of this physical effect are examined through the study of various strain geometries commonly seen in experiments, such as strain superlattices and wrinkled suspended graphene. Of particular technological importance, we consider setup where this gap can be tunable through electrostatic gates, allowing for the design of electronic devices not realizable with other materials.
See accompanying Physics Synopsis at http://physics.aps.org/synopsis-for/10.1103/PhysRevB.83.195436
References in corpus (24)
- Electric Field Effect in Atomically Thin Carbon Films
- The electronic properties of graphene
- Two Dimensional Atomic Crystals
- Control of graphene's properties by reversible hydrogenation
- Chiral tunneling and the Klein paradox in graphene
- Substrate-induced band gap opening in epitaxial graphene
- Ripple Texturing of Suspended Graphene Atomic Membranes
- Fluorographene: Two Dimensional Counterpart of Teflon
- A self-consistent theory for graphene transport
- Quantum transport of massless Dirac fermions in graphene
- Periodically rippled graphene: growth and spatially resolved electronic structure
- Electronic transport in graphene: A semi-classical approach including midgap states
- Scanning Tunneling Spectroscopy of Graphene on Graphite
- Magnetic confinement of massless Dirac fermions in graphene
- Midgap states and charge inhomogeneities in corrugated graphene
- Resonant scattering by realistic impurities in graphene
- Unit cell of graphene on Ru(0001): a 25 x 25 supercell with 1250 carbon atoms
- Symmetry-based approach to electron-phonon interactions in graphene
- Gauge field induced by ripples in graphene
- Gate-controlled Guiding of Electrons in Graphene
- Electronic Transport in Dual-gated Bilayer Graphene at Large Displacement Fields
- Coulomb interaction, ripples, and the minimal conductivity of graphene
- Graphene via large N I: Renormalization
- Band structure and gaps of triangular graphene superlattices