Intrinsic second-order topological insulators in two-dimensional polymorphic graphyne with sublattice approximation

Abstract In two dimensions, intrinsic second-order topological insulators (SOTIs) are characterized by topological corner states that emerge at the intersections of distinct edges with reversed mass signs, enforced by spatial symmetries. Here, we present a comprehensive investigation within the clas...

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Bibliographic Details
Main Authors: Zhongjia Chen, Shaogang Xu, Zijuan Xie, Hu Xu, Hongming Weng
Format: Article
Language:English
Published: Nature Portfolio 2024-11-01
Series:npj Quantum Materials
Online Access:https://doi.org/10.1038/s41535-024-00710-x
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