Persistent current due to a screw dislocation in Weyl semimetals: Role of one-dimensional chiral states
arXiv:1905.02359 · doi:10.7566/JPSJ.88.054715
Abstract
A Weyl semimetal pierced by a screw dislocation accommodates one-dimensional (1D) chiral states along the corresponding dislocation line. As these states propagate in a particular direction determined by their chirality, a persistent current (i.e., charge current in equilibrium) is expected to appear in the interior of the system. To confirm this expectation, we numerically calculate the charge current in a Weyl semimetal in the presence of a screw dislocation. It is shown that a significant charge current is induced by the 1D chiral states near the dislocation. We also analyze the spatial distribution of the charge current focusing on the top and bottom surfaces of the system, at which the screw dislocation is terminated, and give an overview of how the charge current due to the dislocation is converted to that carried by other states near the termination point of the dislocation.
arXiv comment7 pages, 14 figures
References in corpus (37)
- Electronic Structure of Pyrochlore Iridates: From Topological Dirac Metal to Mott Insulator
- Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs
- Weyl Semimetal in a Topological Insulator Multilayer
- Experimental discovery of Weyl semimetal TaAs
- Topological nodal semimetals
- Theoretical Discovery/Prediction: Weyl Semimetal states in the TaAs material (TaAs, NbAs, NbP, TaP) class
- Weyl semimetal phase in non-centrosymmetric transition metal monophosphides
- Phase transition between the quantum spin Hall and insulator phases in 3D: emergence of a topological gapless phase
- Observation of Weyl nodes in TaAs
- Discovery of a Weyl Fermion semimetal state in NbAs
- Topological response in Weyl semimetals and the chiral anomaly
- Quantum Hall effects in a Weyl Semi-Metal: possible application in pyrochlore Iridates
- Evidence for Magnetic Weyl Fermions in a Correlated Metal
- Electromagnetic Response of Weyl Semimetals
- Helical Metal Inside a Topological Band Insulator
- Topological and magnetic phases of interacting electrons in the pyrochlore iridates
- Time-reversal invariant realization of the Weyl semimetal phase
- Orbital ferromagnetism and anomalous Hall effect in antiferromagnets on distorted fcc lattice
- Axion response in Weyl semimetals
- Topological insulators in three dimensions from spontaneous symmetry breaking
- Sub-nm wide electron channels protected by topology
- Generalized Bloch theorem and chiral transport phenomena
- Direct Observation of Nonequivalent Fermi-Arc States of Opposite Surfaces in Noncentrosymmetric Weyl Semimetal NbP
- Topological Weyl Semi-metal from a Lattice Model
- Torsional chiral magnetic effect in Weyl semimetal with topological defect
- Chiral magnetic effect in two-band lattice model of Weyl semimetal
- Weak topological insulator with protected gapless helical states
- Perfectly conducting channel on the dark surface of weak topological insulators
- Chiral magnetic effect in the absence of Weyl node
- Spin Berry phase in the Fermi arc states
- Electron Correlation Induced Spontaneous Symmetry Breaking and Weyl Semimetal Phase in a Strongly Spin-Orbit Coupled System
- Regularization of a massless Dirac model to describe anomalous electromagnetic response of Weyl semimetals
- Regularized framework of a Weyl equation for describing a Weyl semimetal: Application to the case with a screw dislocation
- Chiral Magnetic Effect due to Inhomogeneous Magnetic Fields in Noncentrosymmetric Weyl Semimetals
- Chiral surface states on the step edge in a Weyl semimetal
- Spontaneous charge current in a doped Weyl semimetal
- Regularized continuum model of a Weyl semimetal for describing anomalous electromagnetic response
Cited by in corpus (6)
- Dislocation defect as a bulk probe of monopole charge of multi-Weyl semimetals
- Torsion-induced chiral magnetic current in equilibrium
- Anomalous conductance scaling in strained Weyl semimetals
- Gapless Fermionic Systems as Phase-space Topological Insulators: Non-perturbative Results from Anomalies
- Observation of 1D Fermi arc states in Weyl semimetal TaAs
- Fragile dislocation modes in obstructed atomic topological phases