Mesoscopic fluctuations of conductance of a helical edge contaminated by magnetic impurities
arXiv:1301.1185 · doi:10.1103/PhysRevLett.110.206803
Abstract
Elastic backscattering of electrons moving along the helical edge is prohibited by time-reversal symmetry (TRS). We demonstrate, however, that an ensemble of magnetic impurities may cause TRS-preserving quasi-elastic backscattering, resulting in interference effects in the conductance. The characteristic energy transferred in a backscattering event is suppressed due to the RKKY interaction of localized spins (the suppression is exponential in the total number of magnetic impurities). We predict the statistics of conductance fluctuations to differ from those in the conventional case of a one-dimensional system with quenched disorder.
5 pages 2 figures
References in corpus (8)
- Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
- Quantum Spin Hall Insulator State in HgTe Quantum Wells
- Theory of ferromagnetic (III,Mn)V semiconductors
- The Quantum Spin Hall Effect: Theory and Experiment
- The Helical Liquid and the Edge of Quantum Spin Hall Systems
- Kondo effect in the helical edge liquid of the quantum spin Hall state
- Conductance of a helical edge liquid coupled to a magnetic impurity
- Kondo lattice on the edge of a two-dimensional topological insulator
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- Edge conduction in monolayer WTe2
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- Single-edge transport in an InAs/GaSb quantum spin Hall insulator
- Indirect exchange interaction between magnetic impurities near the helical edge
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- Non-linear ballistic response of quantum spin-Hall edge states
- Indications of the topological transport by the universal conductance fluctuations in the Bi2Te2Se microflakes
- Work Extraction and Landauer's Principle in a Quantum Spin Hall Device
- Two-dimensional topological insulator edge state backscattering by dephasing
- Unrestricted electron bunching at the helical edge
- Quantitative theory of backscattering in topological HgTe and (Hg,Mn)Te quantum wells: acceptor states, Kondo effect, precessional dephasing, and bound magnetic polaron
- Quantum Phase Transition and Protected Ideal Transport in a Kondo Chain
- Finite frequency backscattering current noise at a helical edge
- Effects of disorder on electron tunneling through helical edge states
- Protection of Edge transport in Quantum Spin Hall samples: Spin-Symmetry Based General Approach and Examples
- Chiral Lattice Supersolid on Edges of Quantum Spin Hall Samples
- Elastic backscattering of quantum spin Hall edge modes from Coulomb interactions with non-magnetic impurities
- Analytical and Numerical study of the out-of-equilibrium current through a helical edge coupled to a magnetic impurity
- The effect of magnetic impurity scattering on transport in topological insulators
- Chiral numerical renormalization group
- Suppression of ballistic helical transport by isotropic dynamical magnetic impurities
- Robustness of Helical Edge States Under Edge Reconstruction
- Transport in quantum spin Hall edges in contact to a quantum dot
- Electronic thermal conductivity in 2D topological insulator in a HgTe quantum well
- Universal Conductance Fluctuations of Topological Insulators
- Interaction- and phonon-induced topological phase transitions in double helical liquids
- Effects of the Vertices on the Topological Bound States in a Quasicrystalline Topological Insulator
- Thermal dissipation of the quantum spin Hall edge states in HgTe/CdTe quantum well
- A non-perturbative expression for the transmission through a leaky chiral edge mode
- A non-magnetic mechanism of backscattering in helical edge states