Pseudo chiral anomaly in zigzag graphene ribbons
arXiv:1907.00517 · doi:10.1088/1361-648X/ab4466
Abstract
As the three-dimensional analogs of graphene, Weyl semimetals display signatures of chiral anomaly which arises from charge pumping between the lowest chiral Landau levels of the Weyl nodes in the presence of parallel electric and magnetic fields. In this work, we study the pseudo chiral anomaly and its transport signatures in graphene ribbon with zigzag edges. Here "pseudo" refers to the case where the inverse of width of zigzag graphene ribbon plays the same role as magnetic field in three-dimensional Weyl semimetals. The valley chiral bands in zigzag graphene ribbons can be introduced by edge potentials, giving rise to the nonconservation of chiral current, i.e., pseudo chiral anomaly, in the presence of a longitudinal electric field. Further numerical results reveal that pseudo magnetoconductivity of zigzag graphene ribbons is positive and has a nearly quadratic dependence on the pseudofield, which is regarded as the transport signature of pseudo chiral anomaly.
arXiv comment8 pages, 4 figures. Published version
References in corpus (46)
- The electronic properties of graphene
- Two-Dimensional Gas of Massless Dirac Fermions in Graphene
- Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
- Energy Band Gap Engineering of Graphene Nanoribbons
- Electronic Structure of Pyrochlore Iridates: From Topological Dirac Metal to Mott Insulator
- Weyl and Dirac Semimetals in Three Dimensional Solids
- Chiral tunneling and the Klein paradox in graphene
- Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs
- Room-Temperature Quantum Hall Effect in Graphene
- The Chiral Magnetic Effect
- Valley filter and valley valve in graphene
- Theoretical Discovery/Prediction: Weyl Semimetal states in the TaAs material (TaAs, NbAs, NbP, TaP) class
- Observation of the chiral anomaly induced negative magneto-resistance in 3D Weyl semi-metal TaAs
- On-surface synthesis of graphene nanoribbons with zigzag edge topology
- Electronic States of Graphene Nanoribbons
- Chiral Anomaly and Classical Negative Magnetoresistance of Weyl Metals
- Electronic and Magnetic Properties of Nanographite Ribbons
- A self-consistent theory for graphene transport
- Observation of the chiral magnetic effect in ZrTe5
- Measurement of Scattering Rate and Minimum Conductivity in Graphene
- Quantum-limited shot noise in graphene
- Room temperature magnetic order on zigzag edges of narrow graphene nanoribbons
- Evidence of Klein tunneling in graphene p-n junctions
- Recent developments in transport phenomena in Weyl semimetals
- Spatially Resolving Spin-split Edge States of Chiral Graphene Nanoribbons
- Topological Origin of Zero-Energy Edge States in Particle-Hole Symmetric Systems
- Topological Band Engineering of Graphene Nanoribbons
- Engineering of robust topological quantum phases in graphene nanoribbons
- The Zak phase and the existence of edge states in graphene
- Negative Magnetoresistance in Dirac Semimetal Cd3As2
- Giant negative magnetoresistance induced by the chiral anomaly in individual Cd3As2 nanowires
- Dirac vs. Weyl in topological insulators: Adler-Bell-Jackiw anomaly in transport phenomena
- Edge states in Graphene: from gapped flat band to gapless chiral modes
- Demonstration of one-parameter scaling at the Dirac point in graphene
- Topological Phases in Graphene Nanoribbons: Junction States, Spin Centers and Quantum Spin Chains
- Giant edge state splitting at atomically precise zigzag edges
- Chiral Anomaly and Diffusive Magnetotransport in Weyl Metals
- Perfectly Conducting Channel and Universality Crossover in Disordered Nano-Graphene Ribbons
- Experimental tests of the chiral anomaly magnetoresistance in the Dirac-Weyl semimetals NaBi and GdPtBi
- Chiral anomaly from strain-induced gauge fields in Dirac and Weyl semimetals
- Conductivity and Fano factor in disordered graphene
- Dirac and Weyl Materials: Fundamental Aspects and Some Spintronics Applications
- Unified bulk-boundary correspondence for band insulators
- Size quantization of Dirac fermions in graphene constrictions
- Anderson localization in two-dimensional graphene with short-range disorder: One-parameter scaling and finite-size effects
- Topological aspect of graphene physics
Cited by in corpus (6)
- Observation of boundary induced chiral anomaly bulk states and their transport properties
- Dirac States in an Inclined Two-Dimensional Su-Schrieffer-Heeger Model
- Klein-bottle quadrupole insulators and Dirac semimetals
- Edge state in AB-stacked bilayer graphene and its correspondence with SSH ladder
- The One-dimensional Chiral Anomaly and its Disorder Response
- Boundary-induced helical bulk acoustic transport in LiNbO3 thin films