Manifestation of Topological Protection in Transport Properties of Epitaxial Bi2Se3 Thin Films

Abstract

The massless Dirac fermions residing on the surface of three-dimensional topological insulators are protected from backscattering and cannot be localized by disorder, but such protection can be lifted in ultrathin films when the three-dimensionality is lost. By measuring the Shubnikov-de Haas oscillations in a series of high-quality Bi2Se3 thin films, we revealed a systematic evolution of the surface conductance as a function of thickness and found a striking manifestation of the topological protection: The metallic surface transport abruptly diminishes below the critical thickness of ~6 nm, at which an energy gap opens in the surface state and the Dirac fermions become massive. At the same time, the weak antilocalization behavior is found to weaken in the gapped phase due to the loss of πBerry phase.

5 pages, 4 figures (paper proper) + 9 pages, 11 figures (supplemental material); final version published in PRL and is highlighted with a Synopsis on the Physics website; title has been changed from the initial version

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Cited by in corpus (135)

• Topological Insulator Materials
• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• Strong Rashba-Edelstein Effect-Induced Spin-Orbit Torques in Monolayer Transition-Metal Dichalcogenide/Ferromagnet Bilayers
• A sudden collapse in the transport lifetime across the topological phase transition in $(B{i}_{1-x}I{n}_x{)}_{2}S{e}_3$
• Planar Hall effect from the surface of topological insulators
• Quantum interference and Aharonov-Bohm oscillations in topological insulators
• Electrical detection of the spin polarization due to charge flow in the surface state of the topological insulator Bi_1.5 Sb_0.5 Te_1.7 Se_1.3
• Massive Dirac surface states in topological insulator/magnetic insulator heterostructures
• Transport Properties of Topological Insulators: Band Bending, Bulk Metal-to-Insulator Transition, and Weak Anti-Localization
• Room Temperature Electrical Detection of Spin Polarized Currents in Topological Insulators
• Observation of Quantum-Tunneling Modulated Spin Texture in Ultrathin Topological Insulator Bi2Se3 Films
• Coherent Topological Transport on the Surface of Bi2Se3
• One-dimensional helical transport in topological insulator nanowire interferometers
• Topological Surface Transport in Epitaxial SnTe Thin Films Grown on Bi2Te3
• Emerging Weak Localization Effects on Topological Insulator-Insulating Ferromagnet (Bi_2Se_3-EuS) Interface
• Spin-Polarized Tunneling Study on Spin-Momentum Locking in the Topological Insulators
• Proximity effect in graphene-topological insulator heterostructures
• Emergence of decoupled surface transport channels in bulk insulating Bi2Se3 thin films
• Granularity Controlled Non-Saturating Linear Magneto-resistance in Topological Insulator Bi2Te3 Films
• Self-Modulation Doping Effect in the High-Mobility Layered Semiconductor Bi2O2Se
• Intrinsic conduction through topological surface states of insulating Bi${}_2$Te${}_3$ epitaxial thin films
• Extremely large non-saturating magnetoresistance and ultrahigh mobility due to topological surface states in metallic Bi2Te3 topological insulator
• Observation of Anderson localization in ultrathin films of three-dimensional topological insulators
• Quantum oscillations and Berry's phase in topological insulator surface states with broken particle-hole symmetry
• Manipulation of Topological States and Bulk Band Gap Using Natural Heterostructures of a Topological Insulator
• Antiferromagnetism and superconductivity in the half-Heusler semimetal HoPdBi
• Quantum Coherent Transport in SnTe Topological Crystalline Insulator Thin Films
• Electric Field Tuning of the Surface Band Structure of Topological Insulator Sb2Te3 Thin Films
• Berry phase theory of planar Hall effect in Topological Insulators
• Ordered Growth of Topological Insulator Bi2Se3 Thin Films on Dielectric Amorphous SiO2 by MBE
• 2D layered transport properties from topological insulator Bi${}_2$Se${}_3$ single crystals and micro flakes
• Demonstration of surface transport in a hybrid Bi2Se3/Bi2Te3 heterostructure
• Influence of Topological Edge States on the Properties of Al/Bi2Se3/Al Hybrid Josephson Devices
• Maximizing the thermoelectric performance of topological insulator Bi2Te3 films in the few-quintuple layer regime
• Topological Crystalline Insulator Nanomembrane with Strain-Tunable Band Gap
• Unexpectedly robust protection from backscattering in the topological insulator Bi${}_{1.5}$Sb${}_{0.5}$Te${}_{1.7}$Se${}_{1.3}$
• Magnetotransport and induced superconductivity in Bi based three-dimensional topological insulators
• Finite-size-effect-induced topological phase transition in a topological crystalline insulator
• Linear magneto-resistance versus weak antilocalization effects in Bi${}_2$Te${}_3$ films
• Weak Localization Effects as Evidence for Bulk Quantization in Thin Films Bi2Se3
• Characterizing the Structure of Topological Insulator Thin Films
• Growth, characterization, and transport properties of ternary (Bi1-xSbx)2Te3 topological insulator layers
• In-situ spectroscopy of intrinsic Bi2Te3 topological insulator thin films and impact of extrinsic defects
• In-plane Topological p-n Junction in the Three-Dimensional Topological Insulator Bi${}_{2-x}$Sb${}_x$Te${}_{3-y}$Se${}_y$
• Multiple Fermi pockets revealed by Shubnikov-de Haas oscillations in WTe2
• Experimental evidence and control of the bulk-mediated intersurface coupling in topological insulator Bi2Te2Se nanoribbons
• Hysteretic Magnetotransport in SmB6 at Low Magnetic Fields
• Magnetotransport Measurements of the Surface States of Samarium Hexaboride using Corbino Structures
• Spin Polarization of Gapped Dirac Surface States Near the Topological Phase Transition in TlBi(S1-xSex)2
• Electronic States of Wires and Slabs of Topological Insulators: Quantum Hall Effects and Edge Transport
• Proximity effect between a topological insulator and a magnetic insulator with large perpendicular anisotropy
• Metal-Insulator Transition in Variably Doped (Bi1-xSbx)2Se3 Nanosheets
• Weak Localization and Antilocalization in Topological Materials with Impurity Spin-Orbit Interactions
• Ambipolar transport in bulk crystals of a topological insulator by gating with ionic liquid
• Surface conduction and reduced electrical resistivity in ultrathin noncrystalline NbP semimetal
• Finite-size and composition-driven topological phase transition in (Bi${}_{1-x}$In${}_x$)${}_2$Se${}_3$ thin films
• Aging and reduced bulk conductance in thin films of the topological insulator Bi${}_2$Se${}_3$
• Scanning Tunneling Microscopy of Gate Tunable Topological Insulator Bi2Se3 Thin Films
• Spin-polarized tunneling current through a thin film of topological insulator in a parallel magnetic field
• Inducing magnetism onto the surface of a topological crystalline insulator
• Disorder-induced topological phase transitions on Lieb lattices
• Transferring MBE-grown topological insulator films to arbitrary substrates and Metal-insulator transition via Dirac gap
• Robust topological surface states of Bi2Se3 thin films on amorphous SiO2/Si substrate and a large ambipolar gating effect
• Quantum oscillations revealing topological band in kagome metal ScV6Sn6
• Evidence for topological surface states in metallic single crystals of Bi2Te3
• Topological Anderson insulator phase in a Dirac-semimetal thin film
• Tunable Coupling between Surface States of a Three-Dimensional Topological Insulator in the Quantum Hall Regime
• Surface Shubnikov-de Hass oscillations and non-zero Berry phases of the topological hole conduction in Tl${}_{1-x}$Bi${}_{1+x}$Se${}_2$
• Hybridization-induced interface states in a topological insulator-magnetic metal heterostructure
• High Quality Ultrathin Bi2Se3 Films on CaF2 and CaF2/Si by Molecular Beam Epitaxy with a Radio Frequency Cracker Cell
• Giant magnetoresistance in the junction of two ferromagnets on the surface of diffusive topological insulators
• Magneto-transport behaviour of Bi2Se3-xTex: Role of disorder
• Transport discovery of emerging robust helical surface states in $Z_2=0$ systems
• Trigger of the ubiquitous surface band bending in 3D topological insulators
• Experimental Proof of Universal Conductance Fluctuation in Quasi-1D Epitaxial Bi${}_2$Se${}_3$ Wires
• Disorder-driven topological phase transition in Bi2Se3 films
• Interaction and disorder effects in 3D topological insulator thin films
• Quantum Transport and Potential of Topological States for Thermoelectricity in Bi${}_2$Te${}_3$ Thin Films
• Low temperature Hall effect in bismuth chalcogenides thin films
• Magnetic-field-induced topological phase transition in Fe-doped (Bi,Sb)${}_2$Se${}_3$ heterostructures
• Signature of the topological surface state in the thermoelectric properties of Bi${}_2$Te${}_3$
• Probing Dirac Fermion Dynamics in Topological Insulator Bi${}_2$Se${}_3$ Films with Scanning Tunneling Microscope
• Microscopic derivation of magnon spin current in a topological insulator/ferromagnet heterostructure
• Quantum capacitance of an ultrathin topological insulator film in a magnetic field
• Thickness and growth-condition dependence of \emph{in-situ} mobility and carrier density of epitaxial thin-film Bi${}_2$Se${}_3$
• Universal scaling for the spin-electricity conversion on surface states of topological insulators
• Dimensional crossover of transport characteristics in topological insulator nanofilms
• One-dimensional topological insulator: a model for studying finite-size effects in topological insulator thin films
• Comparative study of Weyl semimetal, topological and Chern insulators: thin-film point of view
• Screening, Friedel oscillations and low-temperature conductivity in topological insulator thin films
• Weak Antilocalization and Universal Conductance Fluctuations in Bismuth Telluro-Sulfide Topological Insulators
• Magnetotransport in Bi${}_2$Se${}_3$ thin films epitaxially grown on Ge(111)
• Spin and charge transport induced by a twisted light beam on a surface of a topological insulator
• Transport Properties of Topological Insulators Films and Nanowires
• High density carriers at a strongly coupled graphene-topological insulator interface
• Chiral phase transition in a planar four-Fermi model in a tilted magnetic field
• Phase-coherent transport in catalyst-free vapor phase deposited Bi${}_2$Se${}_3$ crystals
• Many Topological Insulators Fail the Surface Conduction Test
• Spin-charge transport driven by magnetization dynamics on disordered surface of doped topological insulators
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• Hexagonal Warping Induced Nonlinear Planar Nernst Effect in Nonmagnetic Topological Insulators
• Bulk contribution to magnetotransport properties of low defect-density Bi${}_2$Te${}_3$ topological insulator thin films
• Robust scheme for magnetotransport analysis in topological insulators
• Gapped Dirac cones and spin texture in thin film topological insulator
• Reentrant Metallic Behavior in the Weyl Semimetal NbP
• Magnetic field-dependent resistance crossover and logarithmic to non-saturating magnetoresistance in topological insulator Bi${}_2$Te${}_3$
• Magnetic Order in 3D Topological Insulators -- Wishful Thinking or Gateway to Emergent Quantum Effects?
• Weak antilocalization beyond the fully diffusive regime in Pb1-xSnxSe topological quantum wells
• Nontrivial topology of bulk HgSe from the study of cyclotron effective mass, electron mobility and phase shift of Shubnikov-de Haas oscillations
• Evidence of decoupling of surface and bulk states in Dirac semimetal $C{d}_{3}A{s}_2$
• Versatile Large-Area Custom-Feature van der Waals Epitaxy of Topological Insulators
• Enhanced coherence and decoupled surface states in topological insulators through structural disorder
• Local and Tunable Geometric Phase of Dirac Fermions in a Topological Junction
• Momentum relaxation effects in 2D-Xene field effect device structures
• Orbit topology analysed from $\pi$ phase shift of magnetic quantum oscillations in three-dimensional Dirac semimetal
• Ultrathin film of 3D topological insulators by vapor-phase epitaxy: Surface dominant transport in wide temperature revealed by Seebeck measurement
• Measuring the Chern number with quantum oscillations
• Reducing the impact of bulk doping on transport properties of Bi-based 3D topological insulators
• Quantum transport through three-dimensional topological insulator p-n junction under magnetic field
• From classical to quantum regime of topological surface states via defect engineering
• Thickness dependence of electron-electron interactions in topological p-n junctions
• Quantum Capacitance of a Topological Insulator-Ferromagnet Interface
• N-Band Photonic Hopf Insulators Based on 2D Microring Lattices
• Introduction of Sr into Bi2Se3 thin films by molecular beam epitaxy
• Synchrotron-radiation studies of topological insulators
• Entanglement entropy and entanglement spectrum of Bi${}_{1-x}$Sb${}_x$ (111) bilayers
• Spin accumulation in disordered topological insulator thin films
• Surface step states and Majorana end states in profiled topological insulator thin films
• Transport evidence of robust topological surface state in BiTeCl single crystals, the first strong inversion asymmetric topological insulator
• Structural and transport properties of 4f electron doped Y1-x(Dy)xPdBi topological semi-metallic thin films
• Interplay between surface Dirac and Rashba states specific for topologically nontrivial van der Waals superlattices
• Surface-bulk coupling in a Bi${}_2$Te${}_3$ nanoplate grown by van der Waals epitaxy
• Phase-coherent loops in selectively-grown topological insulator nanoribbons
• Large gap, a pseudogap and proximity effect in the Bi2Te3/Fe1+yTe interfacial superconductor
• Super-resonant transport of topological surface states subjected to in-plane magnetic fields