11 citations · 19 across the 10 of their papers we have counts for
11 papers
Magnetoelectric Bulk Photovoltaic Effect in Centrosymmetric Solids
Longjun Xiang, Fuming Xu, Lei Zhang +1
It is commonly believed that a bulk photovoltaic current requires broken spatial inversion symmetry. However, in this work, we demonstrate that dc photocurrents can arise in centro…
Lindbladian Phase Geometry and Hall Transport in Open Bloch Systems
Zhihao Jiang, Longjun Xiang, Jian Wang
Quantum geometry underlies a wide range of transport phenomena in Bloch systems. How quantum-geometric transport is modified when Bloch electrons are coupled to an environment, how…
Dissipationless Photovoltaic Spin Hall Effect from Spin-current Vorticity
Longjun Xiang, Jian Wang
Spin-current vorticity (SCV) can generate the linear magnetic spin Hall effect [\href{https://doi.org/10.1038/s41586-018-0853-0}{Nature \textbf{565}, 627 (2019)}], yet its role in…
Third-order intrinsic anomalous Hall effect as a transport fingerprint of altermagnets
Longjun Xiang, Hao Jin, Jian Wang
The intrinsic anomalous Hall effect (IAHE) provides a powerful transport fingerprint of quantum magnets, with its linear and second-order responses distinguishing ferromagnets and…
Curvature-Flux Representation of Local Dirac-Node Topology from Non-Hermitian Zeeman Quantum Geometry
Rongjie Cui, Longjun Xiang, Fuming Xu +1
Local Dirac-node topology is usually described by a winding number or Berry phase, whereas curvature-flux formulations are commonly associated with global band topology. Here we sh…
Linear thermal noise induced by Berry curvature dipole in a four-terminal system
Wenyu Chen, Miaomiao Wei, Yunjin Yu +2
In this work, we numerically investigate linear thermal noise in a four-terminal system with a finite Berry curvature dipole (BCD) using the nonequilibrium Green's function formali…
Unconventional Hall Effect in Gapless Superconductors: Transverse Supercurrent Converted from Normal Current
Miaomiao Wei, Longjun Xiang, Fuming Xu +2
A normal metallic system proximitized by a superconductor can exhibit a gapless superconducting state characterized by segmented Fermi surfaces, as confirmed experimentally. In suc…
Light-induced thermal noise \textit{anomaly} governed by quantum metric
Longjun Xiang, Lei Zhang, Jun Chen +3
Traditionally, thermal noise in electric currents, arising from thermal agitation, is expected to increase with temperature and disappear as approaches zero. Contrary to th…
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…
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…