Higher-order topological phases in crystalline and non-crystalline systems: a review

YB Yang, JH Wang, K Li, Y Xu - Journal of Physics: Condensed …, 2024 - iopscience.iop.org
Higher-order topological phases in crystalline and non-crystalline systems: a review Page 1
Journal of Physics: Condensed Matter ACCEPTED MANUSCRIPT • OPEN ACCESS Higher-order …

Second-order topological insulator state in hexagonal lattices and its abundant material candidates

S Qian, CC Liu, Y Yao - Physical Review B, 2021 - APS
We propose two mechanisms to realize the second-order topological insulator (SOTI) state
in spinless hexagonal lattices, viz., chemical modification and anti-Kekulé/Kekulé distortion …

Phononic second-order topological phase in the compound

FF Huang, P Zhou, WQ Li, SD He, R Tan, ZS Ma… - Physical Review B, 2023 - APS
Second-order topological phases in artificial systems have been extensively studied, but
studies in the phonons of atomic materials are limited. In this paper, we propose that …

Second-order and real Chern topological insulator in twisted bilayer -graphyne

BB Liu, XT Zeng, C Chen, Z Chen, XL Sheng - Physical Review B, 2022 - APS
The study of higher-order and real topological states as well as the material realization have
become a research forefront of topological condensed matter physics in recent years …

Ultrathin films of black phosphorus as suitable platforms for unambiguous observation of the orbital Hall effect

TP Cysne, M Costa, MB Nardelli, RB Muniz… - Physical Review B, 2023 - APS
Phosphorene, a monolayer of black phosphorus, is a two-dimensional material that lacks a
multivalley structure in the Brillouin zone and has negligible spin-orbit coupling. This makes …

Magnetic high-order topological insulator in 2D layered CrOCl

Z Guo, Y Liu, H Jiang, X Zhang, L **, C Liu… - Materials Today Physics, 2023 - Elsevier
High-order topological insulators (HOTIs) have garnered significant interest in recent years
due to their unique properties, but their material realization has thus far been limited to those …

Topological edge and corner states and fractional corner charges in blue phosphorene

T Tani, M Hitomi, T Kawakami, M Koshino - Physical Review B, 2022 - APS
We theoretically study emergent edge and corner states in monolayer blue phosphorus
(blue phosphorene) using the first-principles calculation and tight-binding model. We show …

Topological edge and corner states in the biphenylene network

K Koizumi, HT Phan, K Nishigomi, K Wakabayashi - Physical Review B, 2024 - APS
The electronic states and topological properties of the biphenylene network (BPN) are
analyzed using a tight-binding model based on the π-electron network. It is shown that …

Majorana representation for topological edge states of massless Dirac fermion with nonquantized Berry phase

FR Pratama, T Nakanishi - Physical Review Research, 2024 - APS
We study the bulk-boundary correspondences for zigzag ribbons (ZRs) of massless Dirac
fermion in the two-dimensional α-T 3 lattice. By tuning the hop** parameter α∈[0, 1], the α …

Higher-order obstructed atomic insulator phase in pentagonal monolayer PdSe2

V Nuñez, S Bravo, JD Correa, L Chico, M Pacheco - 2D Materials, 2023 - iopscience.iop.org
We investigate a pentagonal monolayer of palladium diselenide, a stable two-dimensional
system, as a material realization of a crystalline phase with nontrivial topological electronic …