2D transport and screening in topological insulator surface states

Abstract

We study disorder effects on the surface states of the topological insulator Bi${}_2$Se${}_3$ close to the topologically protected crossing point. Close to charge neutrality, local fluctuations in carrier density arising from the random charged disorder in the environment result in electron and hole puddles that dominate the electronic properties of these materials. By calculating the polarizability of the surface state using the random phase approximation, and determining the characteristics of puddles using the self-consistent approximation, we find that band asymmetry plays a crucial role in determining experimentally measured quantities including the conductivity and the puddle autocorrelation length.

5 pages, 4 Figures

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Cited by in corpus (39)

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• Coherent Topological Transport on the Surface of Bi2Se3
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• Quantum oscillations and Berry's phase in topological insulator surface states with broken particle-hole symmetry
• Inter-band Coherence Response to Electric Fields in Crystals
• Carrier screening, transport, and relaxation in 3D Dirac semimetals
• Intrinsic Electron-Phonon Resistivity in Bi2Se3 in the Topological Regime
• Theory of bi-linear magnetoresistance within the minimal model for surface states in topological insulators
• Many-body effects and possible superconductivity in the 2D metallic surface states of 3D topological insulators
• Defect induced negative magnetoresistance and surface state immunity in topological insulator BiSbTeSe2
• Electrostatic Coupling between Two Surfaces of a Topological Insulator Nanodevice
• Conductance modulation in topological insulator Bi2Se3 thin films with ionic liquid gating
• Weak Localization and Antilocalization in Topological Materials with Impurity Spin-Orbit Interactions
• Gate-tunable coherent perfect absorption of terahertz radiation in graphene
• Two-dimensional electronic transport on the surface of 3D topological insulators
• Quantum Transport in Weyl Semimetal Thin Films in the Presence of Spin-Orbit Coupled Impurities
• Van der Waals heterostructures with spin-orbit coupling
• Bulk-impurity induced noise in large-area epitaxial thin films of topological insulators
• Gate tunable quantum transport in double layer graphene
• Chemical Potential Fluctuations in Topological Insulator (Bi${}_{0.5}$Sb${}_{0.5}$)${}_2$Te${}_3$ Films Visualized by Photocurrent Spectroscopy
• Suppression of the Kondo Resistivity Minimum in Magnetic Topological Insulators
• Screening and atomic-scale engineering of the potential at a topological insulator surface
• Experimental search for one-dimensional edge states at surface steps of the topological insulator Bi${}_2$Se${}_3$: Distinguishing between effects and artifacts
• Structurally and Chemically Compatible BiInSe3 Substrate for Topological Insulator Thin Films
• Anomalous Hall Coulomb drag of massive Dirac fermions
• Electrostatic Modulation of the Electronic Properties of Dirac Semimetal Na3Bi
• Coulomb drag in topological insulator films
• Measuring the Chern number with quantum oscillations
• Dielectric screening of surface states in a topological insulator
• Coulomb drag in topological materials
• Thermal screening at finite chemical potential on a topological surface and its interplay with proximity-induced ferromagnetism
• Influence of Helical Spin Structure on the Magnetoresistance of an Ideal Topological Insulator
• Signature of pseudo-diffusive transport in mesoscopic topological insulators
• 2D compressibility of surface states on 3D topological insulators
• Unidirectional magneto-transport of linearly dispersing topological edge states
• Bilinear magnetoresistance in topological insulators: role of magnetic disorder
• A new type of cyclotron resonance from charge-impurity scattering in the bulk-insulating Bi${}_2$Se${}_3$ thin films
• Quantized one-dimensional edge channels with strong spin-orbit coupling in 3D topological insulators