Corner states, energy spectrum and light absorption of γ−graphyne quantum dots

Recently, γ−graphyne has been recognized as a two-dimensional high-order topological insulator with typical corner states. In this work, we examine the condition for the existence of corner states in a hexagonal quantum dot made of γ−graphyne (GYQD). Based on a single-orbital tight-binding model, we...

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Bibliographic Details
Main Authors: Wanqing Cheng, Feng Zhai
Format: Article
Language:English
Published: Elsevier 2023-08-01
Series:Results in Physics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2211379723005326