Tunable valley splitting in two-dimensional , W) heterostructures: Interlayer coupling effects

Y Qi, C Yao, J Zhao, H Zeng - Physical Review B, 2023 - APS
Valleytronics has become an emerging field for both theoretical and experimental research.
Based on first-principles calculations, we demonstrate that the spin valley coupling and …

Floquet valley-polarized quantum anomalous Hall state in nonmagnetic heterobilayers

F Zhan, Z Ning, LY Gan, B Zheng, J Fan, R Wang - Physical Review B, 2022 - APS
The valley-polarized quantum anomalous Hall (VQAH) state, which forwards a strategy for
combining valleytronics and spintronics with nontrivial topology, attracts intensive interest in …

Layer-locked anomalous valley Hall effect in a two-dimensional -type tetragonal antiferromagnetic insulator

SD Guo, W Xu, Y Xue, G Zhu, YS Ang - Physical Review B, 2024 - APS
Antiferromagnetic (AFM) spintronics provides a route towards energy-efficient and ultrafast
device applications. Achieving anomalous valley Hall effect (AVHE) in AFM monolayers is …

Chern number tunable quantum anomalous Hall effect in monolayer transitional metal oxides via manipulating magnetization orientation

Z Li, Y Han, Z Qiao - Physical Review Letters, 2022 - APS
Although much effort has been made to explore quantum anomalous Hall effect (QAHE) in
both theory and experiment, the QAHE systems with tunable Chern numbers are yet limited …

Jacutingaite family: An efficient platform for coexistence of spin valley Hall effects, valley spin-valve realization, and layer spin crossover

MU Rehman, M Kiani, J Wang - Physical Review B, 2022 - APS
Jacutingaite family, a family of naturally occurring exfoliable minerals (Pt 2 HgSe 3 and Pd 2
HgSe 3) discovered in Brazil, is recently predicted to be the very first large-gap Kane-Mele …

Possible way to achieve valley-polarized quantum anomalous Hall insulator

SD Guo, G Wang, YS Ang - Applied Physics Letters, 2023 - pubs.aip.org
The valley-polarized quantum anomalous Hall insulator (VQAHI), which combines
valleytronics and topology in one material, provides a path toward integrating valleytronics …

Designed two dimensional triangle lattice Ti3X5 (X= S, Se): Stable quantum anomalous Hall states with high Chern number

X Xu, T Guo, Y Liu, A Chen, X Zhu, S Wang… - Applied Physics …, 2023 - pubs.aip.org
Although much efforts have been made into exploration of quantum anomalous Hall (QAH)
effects in theory and experiment, the QAH materials with high Chern number are still rare to …

Valley-polarized quantum anomalous Hall effect in van der Waals heterostructures based on monolayer jacutingaite family materials

X Zhu, Y Chen, Z Liu, Y Han, Z Qiao - Frontiers of Physics, 2023 - Springer
We numerically study the general valley polarization and anomalous Hall effect in van der
Waals (vdW) heterostructures based on monolayer jacutingaite family materials Pt2 AX 3 …

Second-order topological insulator in van der Waals heterostructures of

Z Liu, Y Ren, Y Han, Q Niu, Z Qiao - Physical Review B, 2022 - APS
The second-order topological insulator, which has (d− 2)-dimensional topological hinge or
corner states, has been observed in three-dimensional materials, but has yet not been …

Tunable topological phases in monolayer with exchange fields

V Vargiamidis, P Vasilopoulos, N Neophytou - Physical Review B, 2022 - APS
We investigate topological phases of monolayer jacutingaite (Pt 2 HgSe 3) that arise when
considering the competing effects of spin-orbit coupling (SOC), magnetic exchange …