147 citations · 545 across the 40 of their papers we have counts for
43 papers
Piezo-Kerr effect in altermagnets and noncollinear antiferromagnets
Yuqi Liu, Qiu-Shi Huang, Xinfeng Chen +4
Symmetry is usually viewed as a constraint on physical responses, but it can also be used to design the fields that control them. Here, we adopt the representation-matching princip…
Electric Edelstein Effect in Two Dimensions
Xiaoran Lv, Tianqi Zhang, Chaoxi Cui +6
We propose the electric Edelstein effect (EEE) in two-dimensional (2D) systems, where crossed out-of-plane and in-plane electric fields generate a spin polarization. The gate field…
The Price of Precision: A Calibrated Cost Model for Mixed-Precision LLM Serving
Mukund Athmaram, Manoj Rao, Liang Ma
Choosing a mixed-precision configuration for large language model (LLM) serving trades speed against accuracy. Allocators that use average bit-width or a memory budget as a speed p…
Magnetic-Field Selection of Magnetic Order in Altermagnets and Noncollinear Antiferromagnets
Qiu-Shi Huang, Chaoxi Cui, Yilin Han +3
Conventional field selection of magnetic order relies on the Zeeman coupling, which, however, vanishes in magnets without net magnetization, a rapidly growing class including alter…
Néel-order-dependent transverse transport in noncoplanar antiferromagnet
Qi Feng, Yilin Han, Yongkai Li +9
Antiferromagnets hold appealing potential in next-generation spintronic devices with higher frequency and scalability, thanks to their alternating spin orientations that cancel out…
Quantized Spin Hall Effect in Three-Dimensional Nodal-Ring Semimetal: Geometric Scaling and Symmetry-Engineered Spin Response
Jiali Chen, Chaoxi Cui, Zhi-Ming Yu +2
The anomalous Hall conductivity in magnetic Weyl semimetals scales linearly with the momentum separation between Weyl nodes, establishing a geometric paradigm for three-dimensional…
Fractional Spin Ferroelectric and Sliding Spin Current in Magnetic Sliding Ferroelectrics
Yilin Han, Lei Li, Chaoxi Cui +3
We investigate the fractional spin ferroelectric (FSFE) in magnetic sliding ferroelectrics (SFEs), where ferroelectric switching is characterized not only by the reversal of the ou…
Unconventional Scaling of Electric Hall Effect in Magnetic Weyl Semimetals
Chaoxi Cui, Yilin Han, Run-Wu Zhang +2
Electric Hall Effect (EHE), a unique phenomenon in two-dimensional (2D) magnetic systems, refers to the generation of Hall current by an out-of-plane electric field $\Ez$. Here, we…
Ridge-Spin-Layer Coupling and Emergent Ridgetronics in 2D Altermagnets
Mu Tian, Run-Wu Zhang, Chaoxi Cui +2
Extending valleytronics from discrete points to continuous lines in momentum space transforms dispersionless bands into a controllable degree of freedom. Here we introduce ridge--s…
Rotation topological states: theory and material realization
Chun-Xue Liu, Yilin Han, Runze Li +2
The conventional characterization of topological materials relies on topological invariants calculated from the entire set of occupied bands. However, when a system possesses rotat…
Topological Interstitial-Electron Conductor
Tingli He, Xiaoming Zhang, Chaoxi Cui +5
Electron transport in solids arises primarily from two mechanisms: freely moving bulk electrons in metals, and gapless boundary states in topological insulators. Here, we report a…
Spin layer groups and their corepresentations
Zeying Zhang, Gui-Bin Liu, Mu Tian +3
Spin layer groups are the crystallographic symmetry groups with a periodic plane, and their symmetry operations are inherited from three-dimensional (3D) spin space groups. However…
Equivariant Space Group and Hamiltonian for Collinear Magnetic Systems
Chaoxi Cui, Zhi-Ming Yu, Yilin Han +3
Condensed matter physics increasingly focuses on exploiting the magnetic order parameter orientation n as a tuning knob for properties of collinear magnetic materials, but a genera…
Interstitial-Electron Altermagnetism in Two Dimensions
Xia Cheng, Yang Wu, Zhenzhou Guo +5
Altermagnetism has so far been associated with compensated magnetic moments carried by atoms. Here we introduce Stoner instability induced interstitial-electron altermagnetism, a d…
Manipulating Anomalous Transport via Crystal Symmetry in 2D Altermagnets
Dan Li, Shuaiyu Wang, Jiabin chen +7
Anomalous transports, including the anomalous Hall effect (AHE) and anomalous Nernst effect (ANE), are typical manifestations of time-reversal-symmetry-breaking responses in materi…
Nonvolatile Electrical Control of Spin via Sliding Fractional Quantum Multiferroics
Jiajun Lu, Mu Tian, Chaoxi Cui +3
We propose a fractionally quantized polarization induced by interlayer sliding in bilayer altermagnets, unveiling a previously unrecognized multiferroic phase termed sliding fracti…
Anomalous shift in scattering from topological nodal-ring semimetals
Runze Li, Chaoxi Cui, Ying Liu +2
An electron beam may experience an anomalous spatial shift during an interface scattering process. Here, we investigate this phenomenon for reflection from mirror-symmetry-protecte…
Electric-Field Control of Terahertz Response via Spin-Corner-Layer Coupling in Altermagnetic Bilayers
Jianhua Wang, Yilin Han, Shifeng Qian +4
Electric field control of electron charge and spin degrees of freedom is fundamental to modern semiconductor and spintronic devices. Yet controlling electromagnetic waves with an e…
Type-II Antiferroelectricity
Yang Wang, Zhi-Ming Yu, Chaoxi Cui +6
Antiferroelectricity (AFE) is a fundamental concept in physics and materials science. Conventional AFEs have the picture of alternating local electric dipoles defined in real space…
Sliding Ferroelectrics Induced Hybrid-Order Topological Phase Transitions
Ning-Jing Yang, Jian-Min Zhang, Xiao-Ping Li +4
We propose ferroelectric layer sliding as a new approach to realize and manipulate topological quantum states in two-dimensional (2D) bilayer magnetic van der Waals materials. We s…
Floquet control of topological phases and Hall effects in Z2 nodal line semimetals
Pu Liu, Chaoxi Cui, Lei Li +3
Dynamic control of topological properties in materials is central to modern condensed matter physics, and Floquet engineering, utilizing periodic light fields, provides a promising…
Quantized Spin-Hall Conductivity in Altermagnet FeTeO with Mirror-Spin Coupling
Run-Wu Zhang, Chaoxi Cui, Yang Wang +3
Due to spin-orbit coupling (SOC), crucial for the quantum spin Hall (QSH) effect, a quantized spin-Hall conductivity has not yet been reported in QSH insulators and other realistic…
Unconventional topological Weyl-dipole phonon
Jianhua Wang, Yang Wang, Feng Zhou +5
A pair of Weyl points (WPs) with opposite Chern numbers can exhibit an additional higher-order topological charge, giving rise to the formation of a Weyl di…
Essentially degenerate hidden nodal lines in two-dimensional magnetic layer groups
Xiao-Ping Li, Chaoxi Cui, Lei Wang +4
According to the theory of group representations, the types of band degeneracy can be divided into accidental degeneracy and essential degeneracy. The essentially degenerate nodal…