• End modes in arrays of modulated Su--Schrieffer--Heeger chains

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      https://www.ias.ac.in/article/fulltext/pram/087/02/0025

    • Keywords

       

      Su--Schrieffer--Heeger model, topological insulator, tight binding method

    • Abstract

       

      In this article, an extended and modulated version of the classic Su--Schrieffer--Heeger model is analysed. The nature of the end modes and the effect of cyclic modulation of the hopping parameters are studied in detail. The analysis is extended to the case of an array of linear chains described by the Su--Schrieffer--Heeger model, where the robustness of the end states for a large range of coupling strengths between the chains is found.

    • Author Affiliations

       

      BRAJESH NARAYAN1

      1. Amity Institute for Applied Sciences, Amity University, Sector 125, Noida 201 313, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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