Surface spectral function in the superconducting state of a topological insulator

2011/02/28 by Lei Hao, T. K. Lee · 2 citations
Materials Science · Mathematics · Physics and Astronomy · #Condensed matter physics #Function (biology) #Geometry #Graphene research and applications #Insulator (electricity) #Mathematics #Optoelectronics #Physics #Quantum many-body systems #Spectral function #State (computer science) #Superconductivity #Surface (topology) #Surface states #Topological Materials and Phenomena #Topological insulator #Topology (electrical circuits) #cond-mat.mtrl-sci #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.83.134516

published as Physical Review B 83, 134516 (2011) · 12 pages, 9 figures, 1 table

arxiv created 2011/02/28 · openalex publication_date 2011/04/18 · arxiv updated 2011/04/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We discuss the surface spectral function of superconductors realized from a topological insulator, such as the copper-intercalated Bi₂Se₃. These functions are calculated by projecting bulk states to the surface for two different models proposed previously for the topological insulator. Dependence of the surface spectra on the symmetry of the bulk pairing order parameter is discussed with particular emphasis on the odd-parity pairing. Exotic spectra such as an Andreev bound state connected to the topological surface states are presented.

Citations

• Topological field theory of time-reversal invariant insulators
• Topological phases and the quantum spin Hall effect in three dimensions
• Classification of topological insulators and superconductors in three spatial dimensions
• Massive Dirac fermions and spin physics in an ultrathin film of topological insulator
• Quantum Spin Hall Effect in Graphene
• Topological Insulators with Inversion Symmetry
• Quantum Spin Hall Insulator State in HgTe Quantum Wells
• Topological Insulators
• Effective continuous model for surface states and thin films of three-dimensional topological insulators
• Topological invariants for the Fermi surface of a time-reversal-invariant superconductor

Cited by

• Topological Origin of Andreev Flatland in UTe₂: Implication for Josephson STM Measurements
• Superconducting topological surface states in the noncentrosymmetric bulk superconductor PbTaSe 2