7 citations · 15 across the 11 of their papers we have counts for
11 papers · 1 filter
High second Chern number induced by long-range hopping in a four-dimensional Dirac model
Zheng-Rong Liu, Xiang Liu, Rui Chen +1
Four-dimensional (4D) topological systems provide a promising platform for exploring topological phenomena beyond three dimensions. So far, extensive recent studies on 4D topologic…
Topological surface altermagnets in SSH-stacked magnetic layers
Rui Chen, Bin Zhou, Dong-Hui Xu
Surface altermagnetism opens new avenues in spintronics by unlocking altermagnetic spin-splitting at the boundaries of conventional antiferromagnets, bypassing the strict symmetry…
Numerical calculation of the -space second Chern number in four dimensions
Xiang Liu, Xiao-Xia Yi, Zheng-Rong Liu +2
We propose an efficient numerical method to compute the -space second Chern number in four-dimensional (4D) topological systems. Our approach employs an adaptive mesh refinement…
Tunable cornerlike states in topological type-II hyperbolic lattices
Zheng-Rong Liu, Tan Peng, Xiang Liu +4
Type-II hyperbolic lattices constitute a new class of hyperbolic structures that are projected onto the Poincaré ring and possess both an inner and an outer boundary. In this work,…
Evaluation of real-space second Chern number using the kernel polynomial method
Rui Chen, Bin Zhou
We evaluate the real-space second Chern number of four-dimensional Chern insulators using the kernel polynomial method. Our calculations are performed on a four-dimensional system…
Altermagnetism in quasicrystals
Rui Chen, Bin Zhou, Dong-Hui Xu
Altermagnets are a recently discovered class of magnetic materials that combine a collinear, zero-magnetization spin structure, characteristic of antiferromagnets, with spin-split…
Anomalous Hall effects in magnetic weak topological insulator films
Rui Chen, Xiao-Xia Yi, Bin Zhou +1
The interplay between magnetism and strong topological insulator gives rise to distinct new topological phases and various intriguing phenomena, attracting significant attention in…
Five-dimensional Floquet topological semimetals with emergent Yang monopoles and linked Weyl surfaces
Zheng-Rong Liu, Rui Chen, Bin Zhou
Recently, Floquet topological matter has attracted significant attention for its potential to reveal novel topological phases inaccessible in static systems. In this paper, we inve…
Tunable corner-like modes in generalized quadrupole topological insulator
Rui Chen, Bin Zhou, Dong-Hui Xu
Higher-order topological insulators harbor unique corner modes that hold immense potential for applications in information storage. However, the practical manipulation of these sta…
Periodically driven four-dimensional topological insulator with tunable second Chern number
Zheng-Rong Liu, Rui Chen, Bin Zhou
In recent years, Floquet engineering has attracted considerable attention as a promising approach for tuning topological phase transitions. In this work, we investigate the effects…
Four-dimensional Floquet topological insulator with an emergent second Chern number
Zheng-Rong Liu, Rui Chen, Bin Zhou
Floquet topological insulators have been widely investigated in lower-dimensional systems. However, Floquet topological insulators induced by time-periodic driving in higher-dimens…