Evidence for Two-Dimensional Weyl Fermions in Air-Stable Monolayer PtTe1.75

Z Cai, H Cao, H Sheng, X Hu, Z Sun, Q Zhao, J Gao… - Nano Letters, 2024 - ACS Publications
The Weyl semimetals represent a distinct category of topological materials wherein the low-
energy excitations appear as the long-sought Weyl Fermions. Exotic transport and optical …

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 …

Unconventional phonon spectra and obstructed edge phonon modes

R Zhang, H Sheng, J Deng, Z Fang, Z Yang… - Science China Physics …, 2023 - Springer
Based on the elementary band representations (EBR), many topologically trivial materials
are classified as unconventional ones (obstructed atomic limit), where the EBR …

Hinge Majorana flat band in type-II Dirac semimetals

Y Xie, X Wu, Z Fang, Z Wang - Science China Physics, Mechanics & …, 2024 - Springer
Type-II Dirac semimetals exhibit a unique Fermi surface topology, which allows them to host
novel topological superconductivity (TSC). We reveal a novel inter-orbital superconducting …

[HTML][HTML] Transition metals of Pt and Pd on the surface of topological insulator Bi2Se3

L Liu, I Miotkowski, D Zemlyanov… - The Journal of Chemical …, 2024 - pubs.aip.org
Transition metal catalysts supported on topological insulators are predicted to show
improved catalytic properties due to the presence of topological surface states, which may …

Accelerating spin Hall conductivity predictions via machine learning

J Zhao, J Lai, J Wang, YC Zhang, J Li… - Materials Genome …, 2024 - Wiley Online Library
Accurately predicting the spin Hall conductivity (SHC) is crucial for designing novel
spintronic devices that leverage the spin Hall effect. First‐principles calculations of SHCs are …

High-density single-atom electrocatalytic centers on two-dimensional topological platinum tellurides with Te-vacancy superstructure

X Xu, X Wang, S Yu, C Wang, G Liu, H Li… - arXiv preprint arXiv …, 2023 - arxiv.org
Chemical activation of the intrinsically inert basal planes of transition metal dichalcogenides
(TMDs) is crucial for developing high-efficiency electrocatalysts for energy technology …

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 …