Topological crystalline insulators with C_{2} rotation anomaly

Based on first-principles calculations and a symmetry-based indicator analysis, we find a class of topological crystalline insulators (TCIs) with a C_{2} rotation anomaly in a family of Zintl compounds, including Ba_{3}Cd_{2}As_{4}, Ba_{3}Zn_{2}As_{4}, and Ba_{3}Cd_{2}Sb_{4}. The nontrivial band top...

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Bibliographic Details
Main Authors: Tan Zhang, Changming Yue, Tiantian Zhang, Simin Nie, Zhijun Wang, Chen Fang, Hongming Weng, Zhong Fang
Format: Article
Language:English
Published: American Physical Society 2019-08-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.1.012001