Electron supercollimation in graphene and Dirac fermion materials using one-dimensional disorder potentials
arXiv:1404.6019 · doi:10.1103/PhysRevLett.113.026802
Abstract
Electron supercollimation, in which a wavepacket is guided to move undistorted along a selected direction, is a highly desirable property that has yet been realized experimentally. Disorder in general is expected to inhibit supercollimation. Here, we report a counter-intuitive phenomenon of electron supercollimation by disorder in graphene and related Dirac fermion materials. We show that one can use one-dimensional disorder potentials to control electron wavepacket transport. This is distinct from known systems where an electron wavepacket would be further spread by disorder and hindered in the potential fluctuating direction. The predicted phenomenon has significant implications in the understanding and applications of electron transport in Dirac fermion materials.
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Cited by in corpus (14)
- Klein tunneling and supercollimation of pseudospin-1 electromagnetic waves
- Experimental observation of non-Abelian earring nodal links in phononic crystals
- Anomalous localization behaviors in disordered pseudospin systems: Beyond the conventional Anderson picture
- Electron collimation at van der Waals domain walls in bilayer graphene
- Electron-phonon coupling in metallic carbon nanotubes: Dispersionless electron propagation despite dissipation
- Dispersionless propagation of electron wavepackets in single-walled carbon nanotubes
- Transport Anisotropy in One-dimensional Graphene Superlattice in the High Kronig-Penney Potential Limit
- Non-Universal Critical Behaviors in Disordered Pseudospin-1 Systems
- Regular and irregular dynamics of Dirac-Weyl wavepackets in a mesoscopic quantum dot at the edge of topological insulator
- Effect of one-dimensional superlattice potentials on the band gap of two-dimensional materials
- Piezoelectric Electrostatic Superlattices in Monolayer MoS
- Electron dynamics in graphene with spin-orbit couplings and periodic potentials
- Effect of pseudospin polarization on wave packet dynamics in graphene antidot lattices (GALs) in the presence of a normal magnetic field
- Magnetic Bloch bands and Weiss oscillations in Dirac mass superlattices