47 citations · 106 across the 22 of their papers we have counts for
24 papers
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…
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…
Generalized Space Groups from Internal Configuration Spaces
Zeying Zhang, Zhenye Li, Zhi-Ming Yu +2
We develop a unified construction of generalized space groups for crystals with unconventional internal degrees of freedom. Starting from the full group of allowed internal t…
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…
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…
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…
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…
Switchable Giant Spin Injection Current in Janus Altermagnet FeSSeO
Fanxian Pei, Run-Wu Zhang, Lei Li +2
Generating and controlling spin current in miniaturized magnetic quantum devices remains a central objective of spintronics, due to its potential to enable future energy-efficient…
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…
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…
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…
Two-dimensional Topological Ferroelectric Metal with Giant Shift Current
Liu Yang, Lei Li, Zhi-Ming Yu +2
The pursuit for "ferroelectric metal" which combines seemingly incompatible spontaneous electric polarization and metallicity, has been assiduously ongoing but remains elusive. Unl…
Hilbert band complexes and their applications
Zeying Zhang, Y. X. Zhao, Yugui Yao +1
The study of band connectivity is a fundamental problem in condensed matter physics. Here, we develop a new method for analyzing band connectivity, which completely solves the outs…
Planar Hall Plateau in Magnetic Weyl Semimetals
Lei Li, Chaoxi Cui, Run-Wu Zhang +2
Despite the rapid progress in the study of planar Hall effect (PHE) in recent years, all the previous works only showed that the PHE is connected to local geometric quantities, suc…
Electric Hall Effect and Quantum Electric Hall Effect
Chaoxi Cui, Run-Wu Zhang, Yilin Han +2
Exploring new Hall effect is always a fascinating research topic. The ordinary Hall effect and the quantum Hall effect, initially discovered in two-dimensional (2D) non-magnetic sy…
Real topological phonons in 3D carbon allotropes
Xiaotian Wang, Jingbo Bai, Jianhua Wang +6
There has been a significant focus on real topological systems that enjoy space-time inversion symmetry (PT ) and lack spin-orbit coupling. While the theoretical classification of…
Mirror real Chern insulator in two and three dimensions
Yang Wang, Chaoxi Cui, Run-Wu Zhang +4
A real Chern insulator (RCI) featuring a real Chern number and a second-order boundary mode appears in a two-dimensional (2D) system with the space-time inversion symmetry (PT ). H…
Orbital torque switching in perpendicularly magnetized materials
Yuhe Yang, Ping Wang, Jiali Chen +13
The orbital Hall effect in light materials has attracted considerable attention for developing novel orbitronic devices. Here we investigate the orbital torque efficiency and demon…
Hidden Real Topology and Unusual Magnetoelectric Responses in Monolayer Antiferromagnetic CrSeO
Jialin Gong, Yang Wang, Yilin Han +4
Recently, the real topology has been attracting widespread interest in two dimensions (2D). Here, based on first-principles calculations and theoretical analysis, we reveal the mon…