联苯
GSM演进的增强数据速率
拓扑(电路)
物理
数学
计算机科学
组合数学
人工智能
亚苯基
核磁共振
聚合物
作者
Kazuya Koizumi,Huyen Thanh Phan,Kento Nishigomi,Katsunori Wakabayashi
出处
期刊:Physical review
日期:2024-01-25
卷期号:109 (3)
被引量:1
标识
DOI:10.1103/physrevb.109.035431
摘要
The electronic states and topological properties of the biphenylene network (BPN) are analyzed using a tight-binding model based on the $\ensuremath{\pi}$-electron network. It is shown that tuning the hopping parameters induces topological phase transitions, leading to the emergence of edge states owing to the nontrivial topological Zak phase of the bulk BPN. Elementary band analysis clearly gives the number of edge states, which are associated with the location of Wannier centers. In addition, we present the conditions for the emergence of corner states owing to the higher-order topological nature of the BPN.
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