Electron-hole pairing in topological insulator thin film

Abstract

We consider pairing of massless Dirac electrons and holes located on opposite surfaces of thin film of "strong" three-dimensional topological insulator. Such pairing was predicted to give rise to topological exciton condensate with unusual properties. We estimate quantitatively achievable critical temperature of the pairing with taking into account self-consistent screening of the Coulomb interaction, disorder and hybridization of electron and hole states caused by a tunneling through the film. Increase of the gap above the hybridization value when the temperature is lowered can be observable signature of the pairing. System parameters required to observe the electron-hole pairing are discussed.

9 pages, 9 figures; figures 6, 7, 9 were improved and some references were added

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Cited by in corpus (37)

• Coulomb drag
• Electron-hole pairing in graphene-GaAs heterostructures
• Chiral charge order in 1$T$-TiSe${}_2$: importance of lattice degrees of freedom
• Time Reversal Symmetric Topological Exciton Condensate in Bilayer HgTe Quantum Wells
• Weak Localization and Antilocalization in Topological Materials with Impurity Spin-Orbit Interactions
• Topological excitonic corner states and nodal phase in bilayer quantum spin Hall insulators
• Exciton topology and condensation in a model quantum spin Hall insulator
• Tunneling and Fluctuating Electron-Hole Cooper Pairs in Double Bilayer Graphene
• Roton-maxon spectrum and instability for weakly interacting dipolar excitons in a semiconductor layer
• Screening, Friedel oscillations and low-temperature conductivity in topological insulator thin films
• Excitonic condensation in spatially separated one-dimensional systems
• Drag effect and Cooper electron-hole pair fluctuations in a topological insulator film
• Optical probing in a bilayer dark-bright condensate system
• Photoemission spectra of massless Dirac fermions on the verge of exciton condensation
• Anisotropic superfluidity of two-dimensional excitons in a periodic potential
• Fingerprints of Berry phases in the bulk exciton spectrum of a topological insulator
• Fluctuational internal Josephson effect in topological insulator film
• Anomalous Josephson effect of s-wave pairing states in chiral double layers
• Electrified magnetic catalysis in three-dimensional topological insulators
• Electromagnetic properties of a double layer graphene system with electron-hole pairing
• Electron-hole superfluidity controlled by a periodic potential
• Nanosecond dynamics in intrinsic topological insulator ${\text{Bi}}_{2-x}{\text{Sb}}_x{\text{Se}}_3$ revealed by time-resolved optical reflectivity
• Inter-surface interaction via phonon in three-dimensional topological insulator
• Strong enhancement of third harmonic generation in a double layer graphene system caused by electron-hole pairing
• Electron-hole pairing of Fermi-arc surface states in a Weyl-semimetal bilayer
• Edge modes in chiral electron double layers
• Chiral universality class of the normal-superconducting and the exciton condensation transition on the surface of topological insulator
• Excitonic gap generation in thin-film topological insulators
• Anderson-Bogoliubov and Carlson-Goldman modes in counterflow superconductors: Case study of a double monolayer graphene
• BCS theory with the external pair potential
• Electron-hole pairing in topological insulator heterostructures in the quantum Hall state
• Topological fluctuating electron-hole Cooper pairs in graphene-GaAs heterostructures
• Topological hybrid electron-hole Cooper pairing
• Gapless chiral excitons in thin films of topological insulators
• Gapped energy spectra around the Dirac node at the surface of a 3D topological insulator in the presence of the time-reversal symmetry
• Anomalous drag in electron-hole condensates with granulated order
• Quantum Gases of Dipoles, Quadrupoles and Octupoles in Gross-Pitaevskii Formalism with Form Factor