Large shift current, Zak phase, and the unconventional nature of Se and Te

R Zhang, J Deng, Y Sun, Z Fang, Z Guo, Z Wang - Physical Review Research, 2023 - APS
Recently, unconventional materials (or obstructed atomic insulators) have attracted much
attention owing to the unconventional feature of mismatch between Wannier centers and …

Majorana corner modes in unconventional monolayers of the family

H Sheng, Y Xie, Q Wu, H Weng, X Dai, BA Bernevig… - Physical Review B, 2024 - APS
In this work we propose that Majorana zero modes can be realized at the corners of the two-
dimensional unconventional insulator. We demonstrate that 1 T-PtSe 2 is a symmetry …

Superconductivity in unconventional metals

Z Yang, H Sheng, Z Guo, R Zhang, Q Wu… - npj Computational …, 2024 - nature.com
Based on first-principles calculations, we demonstrate that 1H/2H-phase transition metal
dichalcogenides MX 2 (M= Nb, Ta; X= S, Se, Te) are unconventional metals, which have an …

Symmetry indicator-free unconventionality, obstructed edge states and Majorana engineering in 1T-PtSe2 family

H Sheng, Y Xie, Q Wu, H Weng, X Dai… - arXiv e …, 2023 - ui.adsabs.harvard.edu
Unconventional materials with mismatch between electronic centers and atomic positions
can be diagnosed by symmetry eigenvalues at several high-symmetry $ k $ points. Their …

Majorana corner modes in unconventional monolayers of 1T-PtSe2 family

Z Wang, H Sheng, Y Xie, Q Wu, H Weng, X Dai… - 2024 - researchsquare.com
In this work, we propose that Majorana zero modes can be realized at the corners of a
topologically trivial insulator with unconventionality. We demonstrate that 1T-PtSe2 is a …