56 citations · 373 across the 41 of their papers we have counts for
9 papers · 1 filter
Intrinsic gyrotropic magnetic current from Zeeman quantum geometry
Longjun Xiang, Jinxiong Jia, Fuming Xu +2
Quantum geometric tensor (QGT), which is usually obtained by evaluating the quantum distance between Bloch states parametrized by momentum, plays a key role in exploring the exotic…
Classification of spin Hall effect in two-dimensional systems
Longjun Xiang, Fuming Xu, Luyang Wang +1
Physical properties such as the conductivity are usually classified according to the symmetry of the underlying system using Neumann's principle, which gives an upper bound for the…
Quantum nonlinear ac transport theory at low frequency
Lei Zhang, Fuming Xu, Jian Chen +2
Based on the nonequilibrium Green's function (NEGF), we develop a quantum nonlinear theory to study time-dependent ac transport properties in the low frequency and nonlinear bias v…
Bulk-boundary-transport correspondence of the second-order topological insulators
Yuxiong Long^§, Miaomiao Wei^§, Fuming Xu +1
The bulk-boundary correspondence of the second-order topological insulator (SOTI) has been well established, but a universal transport signature for open systems is still absent. F…
Unified framework of the microscopic Landau-Lifshitz-Gilbert equation and its application to Skyrmion dynamics
Fuming Xu, Gaoyang Li, Jian Chen +4
The Landau-Lifshitz-Gilbert (LLG) equation is widely used to describe magnetization dynamics. We develop a unified framework of the microscopic LLG equation based on the nonequilib…
High-efficiency photoelectric detector based on a p-n homojunction of monolayer black phosphorus
Xueying Zuo, Jingjing Cheng, Yulin Liang +2
We numerically investigate the high-efficiency photovoltaic effect in lateral p-n homojunction based on monolayer black phosphorus (MBP) by using the non-equilibrium Green's functi…
Gapless superconducting state and mirage gap in altermagnets
Miaomiao Wei, Longjun Xiang, Fuming Xu +3
The interplay between spin-orbit interaction (SOI) and magnetism produces interesting phenomena in superconductors. When a two-dimensional (2D) system with strong SOI is coupled to…
Realization of valley-spin polarized current via parametric pump in monolayer
Kai-Tong Wang, Hui Wang, Fuming Xu +2
Monolayer is a typical valleytronic material with valley-spin locked valence bands. We numerically investigate the valley-spin polarized current in monolayer vi…
Quantum Fluctuation of the Quantum Geometric Tensor and its Manifestation as Intrinsic Hall Signatures in Time-Reversal Invariant Systems
Miaomiao Wei, Luyang Wang, Bin Wang +4
In time-reversal invariant systems, all charge Hall effects predicted so far are extrinsic effects due to the dependence on the relaxation time. We explore intrinsic Hall signature…