Quantum dots in graphene

Abstract

We suggest a way of confining quasiparticles by an external potential in a small region of a graphene strip. Transversal electron motion plays a crucial role in this confinement. Properties of thus obtained graphene quantum dots are investigated theoretically for different types of the boundary conditions at the edges of the strip. The (quasi)bound states exist in all systems considered. At the same time, the dependence of the conductance on the gate voltage carries an information about the shape of the edges.

4 pages, 3 figures

References in corpus (7)

• Electric Field Effect in Atomically Thin Carbon Films
• Chiral tunneling and the Klein paradox in graphene
• Electronic States of Graphene Nanoribbons
• Unconventional Integer Quantum Hall effect in graphene
• Weak localisation magnetoresistance and valley symmetry in graphene
• Quantum-limited shot noise in graphene
• Selective transmission of Dirac electrons and ballistic magnetoresistance of \textit{n-p} junctions in graphene

Cited by in corpus (41)

• The electronic properties of graphene
• Chaotic Dirac billiard in graphene quantum dots
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• Andreev reflection and Klein tunneling in graphene
• Spin qubits in graphene quantum dots
• A new electromagnetic mode in graphene
• Spin transport in proximity induced ferromagnetic graphene
• Electronic transport and quantum Hall effect in bipolar graphene p-n-p junction
• Magnetic confinement of massless Dirac fermions in graphene
• Tuning of energy levels and optical properties of graphene quantum dots
• Electronic properties of bilayer and multilayer graphene
• Half-metallic graphene nanodots
• Klein Backscattering and Fabry-Perot Interference in Graphene Heterojunctions
• Quantized Transport in Graphene p-n Junctions in Magnetic Field
• Atomic Collapse and Quasi-Rydberg States in Graphene
• Bound states and magnetic field-induced valley splitting in gate-tunable graphene quantum dots
• Quasi-bound states of quantum dots in single and bilayer graphene
• Disorder-induced enhancement of transport through graphene p-n junctions
• Symmetry Classes in Graphene Quantum Dots: Universal Spectral Statistics, Weak Localization, and Conductance Fluctuations
• Edge Effects in Finite Elongated Graphene Nanoribbons
• Transmission through a biased graphene bilayer barrier
• The Fock-Darwin States of Dirac Electrons in Graphene-based Artificial Atoms
• Charge accumulation at the boundaries of a graphene strip induced by a gate voltage: Electrostatic approach
• Hyperfine Interactions in Graphene and Related Carbon Nanostructures
• Atomic collapse, Lorentz boosts, Klein scattering, and other quantum-relativistic phenomena in graphene
• Graphene: A Pseudochiral Fermi Liquid
• Transverse field effect in graphene ribbons
• Electron-electron interaction and charging effects in graphene quantum dots
• Impurity Scattering and Mott's Formula in Graphene
• Magnetic field induced confinement-deconfinement transition in graphene quantum dots
• Electromagnetic field induced suppression of transport through $n$-$p$ junctions in graphene
• Spectrum of $\pi$-electrons in Graphene As a Macromolecule
• The Mott insulator LaTiO_3 in heterostructures with SrTiO_3 is metallic
• Reentrance effect in a graphene n-p-n junction coupled to a superconductor
• Dirac electrons in graphene-based quantum wires and quantum dots
• Pure spin current in graphene NS structures
• Artifical atoms in interacting graphene quantum dots
• Nonequilibrium valley polarization in graphene nanoconstrictions
• Dirac equation description on the electronic states and magnetic properties of a square graphene quantum dot
• Quasiparticles for quantum dot array in graphene and the associated Magnetoplasmons
• Theory of spin qubits in nanostructures