Hybridization Effects of Normal Insulator on Two-Dimensional Topological Insulator

Jiseon Shin, Gun Sang Jeon

Research output: Contribution to journalReview articlepeer-review

1 Scopus citations


We consider a geometry where a quantum spin Hall insulator and a normal insulator are in contact with each other on the same plane. We show that our numerical results in finite-system approach agree with analytic results of an earlier work in a quantum spin Hall insulator. We discuss the effects of properties of normal insulators on the probability density of edge states at the interface. The edge-state width is computed by varying the interface hopping and the staggered lattice potential. We also attempt to explain the energy dispersions of edge states by constructing effective Hamiltonian and discuss its validity.

Original languageEnglish
Pages (from-to)41-47
Number of pages7
JournalJournal of the Korean Physical Society
Issue number1
StatePublished - 1 Jan 2019

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea through Grant No. 2013 R1A1A2007959 and Grant No. 2018R1D1A1B07048749.

Publisher Copyright:
© 2019, The Korean Physical Society.


  • Edge states
  • Spin-orbit coupling
  • Topological insulator


Dive into the research topics of 'Hybridization Effects of Normal Insulator on Two-Dimensional Topological Insulator'. Together they form a unique fingerprint.

Cite this