4 papers
BaHgSn: A Dirac semimetal with surface hourglass fermions
Tan Zhang, Zhihai Cui, Zhijun Wang +2
We proposed that BaHgSn is a Dirac semimetal (DSM) which can host hourglass-like surface states (HSSs) as protected by nonsymmorphic glide symmetry. Compared to KHgSb, an isostruct…
Layer Construction of Topological Crystalline Insulator LaSbTe
Yuting Qian, Zhiyun Tan, Tan Zhang +5
Topological crystalline insulator (TCI) is one of the symmetry-protected topological states. Any TCI can be deformed into a simple product state of several decoupled two-dimensiona…
Temperature-induced band shift in ferromagnetic Weyl semimetal Co3Sn2S2
Run Yang, Tan Zhang, Liqin Zhou +4
The discovery of nonmagnetic Weyl semimetals (WSMs) in TaAs compounds has triggered lots of efforts in finding its magnetic counterpart. While the direct observation of the Weyl no…
Topological Crystalline Insulators with Rotation Anomaly
Tan Zhang, Changming Yue, Tiantian Zhang +5
Based on first-principles calculations and symmetry-based indicator analysis, we find a class of topological crystalline insulators (TCIs) with rotation anomaly in a family o…