19 citations · 27 across the 6 of their papers we have counts for
6 papers
Optical conductivity signature of Van Hove singularity in altermagnetic topological systems
Fang Qin, Rui Chen, Xiao-Bin Qiang
We investigate the topological phases, joint density of states (JDOS), optical conductivities, and magneto-optical responses of a two-dimensional -wave altermagnet with spin-orb…
Robust Spin Logic Enabled by Generalized Symmetry in -Wave Magnets
Hao-Kun Ke, Gong Zhao, Siqing Li +2
Unconventional magnets combine the vanishing stray fields of antiferromagnets with the strong spin-splitting of ferromagnets, offering a unique material platform for spintronics. H…
Layer Hall effect induced by altermagnetism
Fang Qin, Rui Chen
In this work, we propose a scheme to realize the layer Hall effect in the ferromagnetic topological insulator BiSe via proximity to -wave altermagnets. We show that an a…
Tunable corner states in topological insulators with long-range hoppings and diverse shapes
Fang Qin, Rui Chen
In this work we develop a theoretical framework for the control of corner modes in higher-order topological insulators (HOTIs) featuring long-range hoppings and diverse geometries,…
Emergent Weyl-like points in periodically modulated systems
Fang Qin, Rui Chen
We investigate a three-dimensional (3D) topological phase resembling a Weyl semimetal, modulated by a periodic potential and engineered through Floquet dynamics. This system is con…
Light-enhanced nonlinear Hall effect
Fang Qin, Rui Chen, Ching Hua Lee
It is well known that a nontrivial Chern number results in quantized Hall conductance. What is less known is that, generically, the Hall response can be dramatically different from…