Insulating behavior in ultra-thin bismuth selenide field effect transistors

Abstract

Ultrathin (~3 quintuple layer) field-effect transistors (FETs) of topological insulator Bi2Se3 are prepared by mechanical exfoliation on 300nm SiO2/Si susbtrates. Temperature- and gate-voltage dependent conductance measurements show that ultrathin Bi2Se3 FETs are n-type, and have a clear OFF state at negative gate voltage, with activated temperature-dependent conductance and energy barriers up to 250 meV.

References in corpus (7)

• Two Dimensional Atomic Crystals
• Discovery (theoretical prediction and experimental observation) of a large-gap topological-insulator class with spin-polarized single-Dirac-cone on the surface
• Topological Surface States Protected From Backscattering by Chiral Spin Texture
• Strong surface scattering in ultrahigh mobility Bi2Se3 topological insulator crystals
• Surface State Transport and Ambipolar Electric Field Effect in Bi2Se3 Nanodevices
• Momentum-Resolved Landau-Level Spectroscopy of Dirac Surface State in Bi2Se3
• Terahertz Kerr and Reflectivity Measurements on the Topological Insulator Bi2Se3

Cited by in corpus (52)

• Colloquium: Topological Band Theory
• Manifestation of Topological Protection in Transport Properties of Epitaxial Bi2Se3 Thin Films
• Measurement of intrinsic Dirac fermion cooling on the surface of a topological insulator Bi${}_2$Se${}_3$ using time- and angle-resolved photoemission spectroscopy
• Large Chern Number Quantum Anomalous Hall Effect In Thin-film Topological Crystalline Insulators
• Quantum interference and Aharonov-Bohm oscillations in topological insulators
• Coherent Topological Transport on the Surface of Bi2Se3
• Tuning bulk and surface conduction in topological Kondo insulator SmB6
• Aharonov-Bohm Oscillations in a Quasi-Ballistic 3D Topological Insulator Nanowire
• Symmetry Protected Josephson Supercurrents in Three-Dimensional Topological Insulators
• Superconductivity of topological insulator Bi2Se3 at high pressures
• Magnetically Defined Qubits on 3D Topological Insulators
• Quasi-ballistic transport of Dirac fermions in a Bi2Se3 nanowire
• Intrinsic Electron-Phonon Resistivity in Bi2Se3 in the Topological Regime
• Direct Measurement of Surface Transport on a Bulk Topological Insulator
• Fermi-Level Pinning, Charge Transfer, and Relaxation of Spin-Momentum Locking at Metal Contacts to Topological Insulators
• Topological insulator quantum dot with tunable barriers
• Topological insulator Bi2Se3 thin films as an alternative channel material in MOSFETs
• Large-Area and Transferred High-Quality Three-Dimensional Topological Insulator Bi2-xSbxTe3-ySey Ultrathin Film by Catalyst-Free Physical Vapor Deposition
• Novel synthesis of topological insulator based nanostructures (Bi2Te3) demonstrating high performance photodetection
• Atomic-Layer-Deposited Al2O3 on Bi2Te3 for Topological Insulator Field-Effect Transistors
• Conductance modulation in topological insulator Bi2Se3 thin films with ionic liquid gating
• Off-resonant polarized light-controlled thermoelectric transport in ultrathin topological insulators
• 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
• Transferring MBE-grown topological insulator films to arbitrary substrates and Metal-insulator transition via Dirac gap
• Tuning insulator-semimetal transitions in 3D topological insulator thin films by inter-surface hybridization and in-plane magnetic fields
• Single-electron Transport in Graphene-like Nanostructures
• Towards spin injection from silicon into topological insulators: Schottky barrier between Si and Bi2Se3
• Field-effect mobility enhanced by tuning the Fermi level into the band gap of Bi2Se3
• Tri-Dirac Surface Modes in Topological Superconductors
• Quantum capacitance of an ultrathin topological insulator film in a magnetic field
• Simultaneous electrical-field-effect modulation of both top and bottom Dirac surface states of epitaxial thin films of three-dimensional topological insulators
• Effect of Mn doping on ultrafast carrier dynamics in thin films of the topological insulator Bi2Se3
• Chiral phase transition in a planar four-Fermi model in a tilted magnetic field
• Substrate-Independent Catalyst-Free Synthesis of High-Purity Bi2Se3 Nanostructures
• Ambipolar surface state transport in non-metallic stoichiometric Bi${}_2$Se${}_3$ crystals
• Topological insulators in random potentials
• Band structure of topological insulators from noise measurements in tunnel junctions
• Longitudinal DC Conductivity in Dirac Nodal Line Semimetals: Intrinsic and Extrinsic Contributions
• Electronic correlation determining correlated plasmons in Sb-doped Bi${}_2$Se${}_3$
• Interaction proximity effect at the interface between a superconductor and a topological insulator quantum well
• High-performance nanoscale topological energy transduction
• Momentum relaxation effects in 2D-Xene field effect device structures
• Asymmetric versus symmetric $HgTe/C{\mathrm{d}}_{\mathrm{x}}\mathrm{H}{\mathrm{g}}_{1-\mathrm{x}}\mathrm{Te}$ double quantum wells: Band gap tuning without electric field
• From classical to quantum regime of topological surface states via defect engineering
• Pairing instabilities in topological insulator quantum wells
• A thermodynamic measure of the Magneto-electric coupling in the 3D topological insulator
• Contact transparency in mechanically assembled 2D material devices
• Synchrotron-radiation studies of topological insulators
• Tunneling behavior of bismuth telluride nanoplates in electrical transport
• Preservation of Topological Surface States in Millimeter-Scale Transferred Membranes
• Strained topological insulator spin-orbit torque random access memory (STI-SOTRAM) bit cell for energy-efficient Processing in Memory