Publications (100)
Discovery of a symmetry-driven electronic cascade in a -wave altermagnet
Zhouyi Yin, Zheng Shi, Shuxuan Zhang +9
The paper reports the discovery of a symmetry-driven cascade of finite‑momentum charge‑density‑wave orders, including a primary density wave, a nematic component, and an off‑axis m…
Observation of non-volatile anomalous Nernst effect in altermagnet with collinear Néel vector
Lei Han, Xizhi Fu, Wenqing He +11
Anomalous Nernst effect (ANE), a widely investigated transverse thermoelectric effect that converts waste heat into electrical energy with remarkable flexibility and integration ca…
In-Plane Ferroelectric Tunnel Junction
Huitao Shen, Junwei Liu, Kai Chang +1
The ferroelectric material is an important platform to realize non-volatile memories. So far, existing ferroelectric memory devices utilize out-of-plane polarization in ferroelectr…
Ising Dirac fermions across a topological phase transition
Aoqian Zhang, Yaqi Ma, Yifei Jin +14
Dirac fermions have attracted significant interest due to their relativistic dispersions and close connections to topological physics, yet they are generally expected to be gapped…
Observation of a Mott quantum spin Hall insulator in twisted WSe2
Yifei Jin, Yaqi Ma, Aoqian Zhang +9
Quantum spin Hall (QSH) insulators and Mott insulators are conventionally regarded as distinct insulating phases, arising from band topology and strong Coulomb interactions, respec…
Distinguishing and Separating In-Plane Hall Responses
Soumya Sankar, Xingkai Cheng, Junwei Liu +1
Electric Hall effects generated by an in-plane magnetic field have recently gained attention owing to their intrinsic origin in topological electronic states and potential applicat…
Ubiquitous van der Waals altermagnetism with sliding/moire ferroelectricity
Yuxuan Sheng, Junwei Liu, Jia Zhang +1
According to the recent studies on sliding/moire ferroelectricity, most 2D van der Waals nonferroelectric monolayers can become ferroelectric via multilayer stacking. In this paper…
Van der Waals Stacking Induced Topological Phase Transition in Layered Ternary Transition Metal Chalcogenides
Junwei Liu, Hua Wang, Chen Fang +2
Novel materials with nontrivial electronic and photonic band topology are crucial for realizing novel devices with low power consumption and heat dissipation, and quantum computing…
Quantum Spin Hall Effect and Topological Field Effect Transistor in Two-Dimensional Transition Metal Dichalcogenides
Xiaofeng Qian, Junwei Liu, Liang Fu +1
We report a new class of large-gap quantum spin Hall insulators in two-dimensional transition metal dichalcogenides, namely, MX with M=(Mo, W) and X=(S, Se, and Te), whose topo…
A Unified Theory of Deterministic Magnetic Switching
Xizhi Fu, Lei Han, Xi Liu +2
The deterministic switching of magnetic order parameters is critically important, as it forms the fundamental basis for manipulating information states in magnetic memory devices.…
Crystal-symmetry-paired spin-valley locking in a layered room-temperature antiferromagnet
Fayuan Zhang, Xingkai Cheng, Zhouyi Yin +19
Recent theoretical efforts predicted a type of unconventional antiferromagnet characterized by the crystal symmetry C (rotation or mirror), which connects antiferromagnetic sublatt…
Self-Learning Monte Carlo Method in Fermion Systems
Junwei Liu, Huitao Shen, Yang Qi +2
We develop the self-learning Monte Carlo (SLMC) method, a general-purpose numerical method recently introduced to simulate many-body systems, for studying interacting fermion syste…
SynFundus-1M: A High-quality Million-scale Synthetic fundus images Dataset with Fifteen Types of Annotation
Fangxin Shang, Jie Fu, Yehui Yang +3
Large-scale public datasets with high-quality annotations are rarely available for intelligent medical imaging research, due to data privacy concerns and the cost of annotations. I…
All Optical Neural Network with Nonlinear Activation Functions
Ying Zuo, Bohan Li, Yujun Zhao +6
Artificial neural networks (ANNs) have now been widely used for industry applications and also played more important roles in fundamental researches. Although most ANN hardware sys…
MinInter: Minimizing Trajectory Interpolation During Data Augmentation for Imitation Learning
Qingyang Wang, Xingang Liu, Changwei Yao +4
Imitation learning enables robots to acquire complex manipulation skills from demonstrations, but its effectiveness is limited by the cost of collecting high-quality data. Trajecto…
Chemical design of monolayer altermagnets
Runzhang Xu, Yifan Gao, Junwei Liu
The crystal-symmetry-paired spin-momentum locking (CSML) arisen from the intrinsic crystal symmetry connecting different magnetic sublattices in altermagnets enables many exotic sp…
Online Full ZVS Optimization for Modular Multi-Active Bridge Converter in MV PET
Haoyu Wang, Junwei Liu, Jialin Zheng +3
Multi-active bridge (MAB) converters, the core of the state-of-the-art medium-voltage power electronic transformers, can flexibly connect multiple DC ports among distributed DC gri…
Conetronics in 2D Metal-Organic Frameworks: Double Dirac Cones, Magnetic Half Dirac Cones and Quantum Anomalous Hall Effect
Menghao Wu, Zhijun Wang, Junwei Liu +8
Based on recently synthesized Ni3C12S12 class 2D metal-organic frameworks, we predict electronic properties of M3C12S12 and M3C12O12, where M is Zn, Cd, Hg, Be, or Mg with no M orb…
Weak Topological Insulators in PbTe/SnTe Superlattices
Gang Yang, Junwei Liu, Liang Fu +2
It is desirable to realize topological phases in artificial structures by engineering electronic band structures. In this paper, we investigate superlattice…
Catalogue of -paired spin-momentum locking in antiferromagnetic systems
Mengli Hu, Xingkai Cheng, Zhenqiao Huang +1
Antiferromagnetic materials (AFMs) have been gaining lots of attentions due to its great potential in spintronics devices and the recently discovered novel spin structure in the mo…
All-Electrical Layer-Spintronics in Altermagnetic Bilayer
Rui Peng, Jin Yang, Lin Hu +5
Electrical manipulation of spin-polarized current is highly desirable yet tremendously challenging in developing ultracompact spintronic device technology. Here we propose a scheme…
Effects of Hexagonal Boron Nitride Encapsulation on the Electronic Structure of Few-layer MoS
Xu Han, Jiangxiazi Lin, Junwei Liu +2
The hexagonal boron nitride (hBN) encapsulation has been widely used in the electronics applications of 2D materials to improve device performance by protecting 2D materials agains…
Evaluating Instruction-Tuned Large Language Models on Code Comprehension and Generation
Zhiqiang Yuan, Junwei Liu, Qiancheng Zi +3
In this work, we evaluate 10 open-source instructed LLMs on four representative code comprehension and generation tasks. We have the following main findings. First, for the zero-sh…
Topological Crystalline Insulators in the SnTe Material Class
Timothy H. Hsieh, Hsin Lin, Junwei Liu +3
Topological crystalline insulators are new states of matter in which the topological nature of electronic structures arises from crystal symmetries. Here we predict the first mater…
Photoswitchable exceptional points derived from bound states in the continuum
Lei Wang, Hang Liu, Junwei Liu +11
Bound states in the continuum (BICs) and exceptional points (EPs), as two distinct physical singularities represented by complex frequencies in non-Hermitian systems, have garnered…
Experimental observation of Dirac-like surface states and topological phase transition in PbSnTe(111) films
Chenhui Yan, Junwei Liu, Yunyi Zang +12
The surface of a topological crystalline insulator (TCI) carries an even number of Dirac cones protected by crystalline symmetry. We epitaxially grew high quality PbSnT…
Can Agents Fix Agent Issues?
Alfin Wijaya Rahardja, Junwei Liu, Weitong Chen +2
LLM-based agent systems are emerging as a new software paradigm and have been widely adopted across diverse domains such as medicine, robotics, and programming. However, maintainin…
Transport evidence of asymmetric spin-orbit coupling in fewlayer superconducting 1TdMoTe
Jian Cui, Peiling Li, Jiadong Zhou +16
Two-dimensional (2D) transition metal dichalcogenides (TMDCs) MX2 (M=W, Mo, Nb, and X=Te, Se, S) with strong spin-orbit coupling (SOC) possess plenty of novel physics including sup…
Converting normal insulators into topological insulators via tuning orbital levels
Wu-Jun Shi, Junwei Liu, Yong Xu +3
Tuning the spin-orbit coupling strength via foreign element doping and/or modifying bonding strength via strain engineering are the major routes to convert normal insulators to top…
Global Estimation of Building-Integrated Facade and Rooftop Photovoltaic Potential by Integrating 3D Building Footprint and Spatio-Temporal Datasets
Qing Yu, Kechuan Dong, Zhiling Guo +8
This research tackles the challenges of estimating Building-Integrated Photovoltaics (BIPV) potential across various temporal and spatial scales, accounting for different geographi…
Room temperature observation of the anomalous in-plane Hall effect in epitaxial thin films of a Weyl ferromagnet
Soumya Sankar, Xingkai Cheng, Tahir Murtaza +7
Topologically nontrivial electronic states can give rise to novel anomalous Hall effects. The potential appearance of these effects at room temperature holds promise for their appl…
Self-Learning Monte Carlo Method: Continuous-Time Algorithm
Yuki Nagai, Huitao Shen, Yang Qi +2
The recently-introduced self-learning Monte Carlo method is a general-purpose numerical method that speeds up Monte Carlo simulations by training an effective model to propose unco…
Cryogenic in-memory computing using magnetic topological insulators
Yuting Liu, Albert Lee, Kun Qian +17
Machine learning algorithms have been proven effective for essential quantum computation tasks such as quantum error correction and quantum control. Efficient hardware implementati…
Large-scale simulations of vortex Majorana zero modes in topological crystalline insulators
Chun Yu Wan, Yujun Zhao, Yaoyi Li +2
Topological crystalline insulators are known to support multiple Majorana zero modes (MZMs) at a single vortex, their hybridization is forbidden by a magnetic mirror symmetry …
Scalability of all-optical neural networks based on spatial light modulators
Ying Zuo, Zhao Yujun, You-Chiuan Chen +2
Optical implementation of artificial neural networks has been attracting great attention due to its potential in parallel computation at speed of light. Although all-optical deep n…
EHR-R1: A Reasoning-Enhanced Foundational Language Model for Electronic Health Record Analysis
Yusheng Liao, Chaoyi Wu, Junwei Liu +12
Electronic Health Records (EHRs) contain rich yet complex information, and their automated analysis is critical for clinical decision-making. Despite recent advances of large langu…
Heuristic machinery for thermodynamic studies of SU(N) fermions with neural networks
Entong Zhao, Jeongwon Lee, Chengdong He +4
The power of machine learning (ML) provides the possibility of analyzing experimental measurements with an unprecedented sensitivity. However, it still remains challenging to probe…
Topological Crystalline Insulators and Dirac Octets in Anti-perovskites
Timothy H. Hsieh, Junwei Liu, Liang Fu
We predict a new class of topological crystalline insulators (TCI) in the anti-perovskite material family with the chemical formula ABX. Here the nontrivial topology arises fro…
Observation of surface Fermi arcs in altermagnetic Weyl semimetal CrSb
Wenlong Lu, Shiyu Feng, Yuzhi Wang +10
As a special type of collinear antiferromagnetism (AFM), altermagnetism has garnered significant research interest recently. Altermagnets exhibit broken parity-time symmetry and ze…
Unconventional ferroelectricity in half-filling states of antiparallel stacking of twisted WSe2
Liheng An, Zishu Zhou, Xuemeng Feng +9
Abstract: We report on emergence of an abnormal electronic polarization in twisted double bilayer WSe2 in antiparallel interface stacking geometry, where local centrosymmetry of at…
Multifunctional Antiferromagnetic Materials with Giant Piezomagnetism and Noncollinear Spin Current
Hai-Yang Ma, Mengli Hu, Nana Li +4
We propose a new type of spin-valley locking (SVL), named -paired SVL, in antiferromagnetic systems, which directly connects the spin/valley space with the real space,…
MedResearcher-R1: Expert-Level Medical Deep Researcher via A Knowledge-Informed Trajectory Synthesis Framework
Ailing Yu, Lan Yao, Jingnan Liu +13
Recent developments in Large Language Model (LLM)-based agents have shown impressive capabilities spanning multiple domains, exemplified by deep research systems that demonstrate s…
GAPS: A Clinically Grounded, Automated Benchmark for Evaluating AI Clinicians
Xiuyuan Chen, Tao Sun, Dexin Su +37
Current benchmarks for AI clinician systems, often based on multiple-choice exams or manual rubrics, fail to capture the depth, robustness, and safety required for real-world clini…
Self-learning Monte Carlo with Deep Neural Networks
Huitao Shen, Junwei Liu, Liang Fu
Self-learning Monte Carlo (SLMC) method is a general algorithm to speedup MC simulations. Its efficiency has been demonstrated in various systems by introducing an effective model…
Renormalization-Inspired Effective Field Neural Networks for Scalable Modeling of Classical and Quantum Many-Body Systems
Xi Liu, Yujun Zhao, Chun Yu Wan +2
We introduce Effective Field Neural Networks (EFNNs), a new architecture based on continued functions -- mathematical tools used in renormalization to handle divergent perturbative…
Evolving Interactive Diagnostic Agents in a Virtual Clinical Environment
Pengcheng Qiu, Chaoyi Wu, Junwei Liu +11
We present a framework for training large language models (LLMs) as diagnostic agents with reinforcement learning, enabling them to manage multi-turn interactive diagnostic process…
A Refer-and-Ground Multimodal Large Language Model for Biomedicine
Xiaoshuang Huang, Haifeng Huang, Lingdong Shen +4
With the rapid development of multimodal large language models (MLLMs), especially their capabilities in visual chat through refer and ground functionalities, their significance is…
Fast Online Hashing with Multi-Label Projection
Wenzhe Jia, Yuan Cao, Junwei Liu +1
Hashing has been widely researched to solve the large-scale approximate nearest neighbor search problem owing to its time and storage superiority. In recent years, a number of onli…
Ferroelastic Altermagnetism
Rui Peng, Shibo Fang, Pin Ho +3
Synergizing altermagnetism and other ferroic orders, such as ferroelectric switchable altermagnetism [Phys. Rev. Lett. 134, 106801 (2025) and ibid. 106802 (2025)], offers an effect…
The pseudo-Landau-level representation of twisted bilayer graphene: band topology and the implications on the correlated insulating phase
Jianpeng Liu, Junwei Liu, Xi Dai
We propose that the electronic structure of twisted bilayer graphene (TBG) can be understood as Dirac fermions coupled with opposite pseudo magnetic fields generated by the moiré…
Massive Dirac fermions in a ferromagnetic kagome metal
Linda Ye, Mingu Kang, Junwei Liu +10
The kagome lattice is a two-dimensional network of corner-sharing triangles known as a platform for exotic quantum magnetic states. Theoretical work has predicted that the kagome l…
PulseMind: A Multi-Modal Medical Model for Real-World Clinical Diagnosis
Jiao Xu, Junwei Liu, Jiangwei Lao +9
Recent advances in medical multi-modal models focus on specialized image analysis like dermatology, pathology, or radiology. However, they do not fully capture the complexity of re…
Observation of Giant Spin Splitting and d-wave Spin Texture in Room Temperature Altermagnet RuO2
Zihan Lin, Dong Chen, Wenlong Lu +9
Recently, a novel magnetic phase called altermagnetism has been proposed, ushering in a third distinct magnetic phase beyond ferromagnetism and antiferromagnetism. It is expected t…
Chiral Interface States and Related Quantized Transport in Disordered Chern Insulators
Zhi-Qiang Zhang, Chui-Zhen Chen, Yijia Wu +4
In this Letter, we study an Anderson-localization-induced quantized transport in disordered Chern insulators (CIs). By investigating the disordered CIs with a step potential, we fi…
de Haas-van Alphen effect of correlated Dirac states in kagome metal Fe3Sn2
Linda Ye, Mun K. Chan, Ross D. McDonald +7
The field of topological electronic materials has seen rapid growth in recent years, in particular with the increasing number of weakly interacting systems predicted and observed t…
Does Pass Rate Tell the Whole Story? Evaluating Design Constraint Compliance in LLM-based Issue Resolution
Kai Yu, Zhenhao Zhou, Junhao Zeng +8
Repository-level issue resolution benchmarks have become a standard testbed for evaluating LLM-based agents, yet success is still predominantly measured by test pass rates. In prac…
STALL+: Boosting LLM-based Repository-level Code Completion with Static Analysis
Junwei Liu, Yixuan Chen, Mingwei Liu +2
Repository-level code completion is challenging as it involves complicated contexts from multiple files in the repository. To date, researchers have proposed two technical categori…
MedDialogRubrics: A Comprehensive Benchmark and Evaluation Framework for Multi-turn Medical Consultations in Large Language Models
Lecheng Gong, Weimin Fang, Ting Yang +9
Medical conversational AI (AI) plays a pivotal role in the development of safer and more effective medical dialogue systems. However, existing benchmarks and evaluation frameworks…
Observation of spin-valley locked nodal lines in a quasi-2D altermagnet
Quanxin Hu, Xingkai Cheng, Qingchen Duan +19
The interplay among quantum degrees of freedom-spin, orbital and momentum-has emerged as a fertile ground for realizing magnetic quantum states with transformative potential for el…
Instantaneous Capture Input for Balancing the Variable Height Inverted Pendulum
Junwei Liu, Hua Chen, Patrick M. Wensing +1
Balancing is a fundamental need for legged robots due to their unstable floating-base nature. Balance control has been thoroughly studied for simple models such as the linear inver…
Topological semimetals with Riemann surface states
Chen Fang, Ling Lu, Junwei Liu +1
Riemann surfaces are geometric constructions in complex analysis that may represent multi-valued holomorphic functions using multiple sheets of the complex plane. We show that the…
PE-TSFM: Self-Supervised Time-Series Learning for Generalizable Power Converter Health Monitoring under Unseen Conditions
Xinyuan Liao, Xinyue Zhang, Xing Wei +4
Data-driven health monitoring of power converters remains limited by poor generalization to unseen operating conditions. This work addresses this out-of-distribution (OOD) challeng…
Self-Learning Monte Carlo Method
Junwei Liu, Yang Qi, Zi Yang Meng +1
Monte Carlo simulation is an unbiased numerical tool for studying classical and quantum many-body systems. One of its bottlenecks is the lack of general and efficient update algori…
ClassEval: A Manually-Crafted Benchmark for Evaluating LLMs on Class-level Code Generation
Xueying Du, Mingwei Liu, Kaixin Wang +7
In this work, we make the first attempt to evaluate LLMs in a more challenging code generation scenario, i.e. class-level code generation. We first manually construct the first cla…
Crystal Field Effect Induced Topological Crystalline Insulators In Monolayer IV-VI Semiconductors
Junwei Liu, Xiaofeng Qian, Liang Fu
Two-dimensional (2D) topological crystalline insulators (TCIs) were recently predicted in thin films of the SnTe class of IV-VI semiconductors, which can host metallic edge states…
Realistic tight-binding model for monolayer transition metal dichalcogenides in 1T' structure
Mengli Hu, Guofu Ma, Chun Yu Wan +1
Monolayer transition metal dichalcogenides ( = Mo,W and = Te, Se, S) in 1T' structure were predicted to be quantum spin Hall insulators based on first-principles calc…
Strain Tunable Semimetal-Topological-Insulator Transition in Monolayer 1T'-WTe2
Chenxiao Zhao, Mengli Hu, Jin Qin +8
A quantum spin hall insulator(QSHI) is manifested by its conducting edge channels that originate from the nontrivial topology of the insulating bulk states. Monolayer 1T'-WTe2 exhi…
Electrically Tunable Quantum Spin Hall State in Topological Crystalline Insulator Thin films
Junwei Liu, Liang Fu
Based on a combination of theory, band topology analysis and electronic structure calculations, we predict the (111) thin films of the SnTe class of three-dimensional (…
Robust Retinal Vessel Segmentation from a Data Augmentation Perspective
Xu Sun, Huihui Fang, Yehui Yang +4
Retinal vessel segmentation is a fundamental step in screening, diagnosis, and treatment of various cardiovascular and ophthalmic diseases. Robustness is one of the most critical r…
Electrical 180o switching of Néel vector in spin-splitting antiferromagnet
Lei Han, Xizhi Fu, Rui Peng +17
Antiferromagnetic spintronics have attracted wide attention due to its great potential in constructing ultra-dense and ultra-fast antiferromagnetic memory that suits modern high-pe…
Ferromagnetic helical nodal line and Kane-Mele spin-orbit coupling in kagome metal Fe3Sn2
Shiang Fang, Linda Ye, Madhav Prasad Ghimire +8
The two-dimensional kagome lattice hosts Dirac fermions at its Brillouin zone corners K and K', analogous to the honeycomb lattice. In the density functional theory electronic stru…
Multi-Agent Deep Research: Training Multi-Agent Systems with M-GRPO
Haoyang Hong, Jiajun Yin, Yuan Wang +14
Multi-agent systems perform well on general reasoning tasks. However, the lack of training in specialized areas hinders their accuracy. Current training methods train a unified lar…
Direct observation of quadruple spin-texture locking in a 2D d-wave altermagnet
Dan Mu, Bei Jiang, Qingchen Duan +14
Altermagnets combine vanishing net magnetization with nonrelativistic, momentum-dependent spin splitting, offering a new paradigm for spintronics. Spin-crystal symmetry coupling, n…
Surface States of Topological Crystalline Insulators in IV-VI Semiconductors
Junwei Liu, Wenhui Duan, Liang Fu
Topological crystalline insulators (TCI) are new topological phases of matter protected by crystal symmetry of solids. Recently, the first realization of TCI has been predicted and…
Tunable altermagnetism via inter-chain engineering in parallelassembled atomic chains
Deping Guo, Canbo Zong, Weihan Zhang +3
Altermagnetism has recently drawn considerable attention in three- and twodimensional materials. Here, we extend this concept to quasi-one-dimensional (Q1D) monolayers assembled fr…
Robust Coulomb Gap and Varied-temperature Study of Epitaxial 1T'-WSe Monolayers
Wang Chen, Mengli Hu, Junyu Zong +13
The transition metal dichalcogenides (TMDCs) with a 1T' structural phase are predicted to be two-dimensional topological insulators at zero temperature. Although the quantized edge…
Observation of Ultrahigh Mobility Surface States in a Topological Crystalline Insulator by Infrared Spectroscopy
Ying Wang, Guoyu Luo, Junwei Liu +5
Topological crystalline insulators (TCIs) possess metallic surface states protected by crystalline symmetry, which are a versatile platform for exploring topological phenomena and…
Discovery of a large magnetic nonlinear Hall effect in an altermagnet
Lei Han, Xizhi Fu, Cheng Song +10
Since Edwin Halls groundbreaking discovery of the Hall effect in 1879, magnetism, spin, and quantization have been expanding the scope of Hall effects, continuously driving transfo…
Correlation-driven quantum geometry effects in a Kondo system
Ruizi Liu, Zehan Chen, Xingkai Cheng +9
Quantum geometry, including quantum metric and Berry curvature, which describes the topology of electronic states, can induce fascinating physical properties. Symmetry-dependent no…
Coordinated Defense Allocation in Reach-Avoid Scenarios with Efficient Online Optimization
Junwei Liu, Zikai Ouyang, Jiahui Yang +3
In this paper, we present a dual-layer online optimization strategy for defender robots operating in multiplayer reach-avoid games within general convex environments. Our goal is t…
Excitonic-Superconducting Coexistence and Emergent Nematic Superconductivity Driven by Spontaneous Symmetry Breaking
Fei Yang, Ruigang Li, Junwei Liu +1
Excitonic insulating (EI) and superconducting (SC) orders are generally regarded as mutually exclusive electronic instabilities. Within a self-consistent microscopic theory, we stu…
Light-induced percolative topological phase transition in type-II Weyl semimetal WTe2
Xiaoyue Zhou, Fu Deng, Yifan Gao +5
We report on an ultrafast terahertz free-carrier dynamic study of a photo-excited WTe2 thin film. In the photo-excited state, we observe a metastable electronic state featuring neg…
MLB: A Scenario-Driven Benchmark for Evaluating Large Language Models in Clinical Applications
Qing He, Dongsheng Bi, Jianrong Lu +20
The proliferation of Large Language Models (LLMs) presents transformative potential for healthcare, yet practical deployment is hindered by the absence of frameworks that assess re…
Functionalized Germanene as a Prototype of Large-Gap Two-Dimensional Topological Insulators
Chen Si, Junwei Liu, Yong Xu +3
We propose new two-dimensional (2D) topological insulators (TIs) in functionalized germanenes (GeX, X=H, F, Cl, Br or I) using first-principles calculations. We find GeI is a 2D TI…
Quantum-Boosted High-Fidelity Deep Learning
Feng-ao Wang, Shaobo Chen, Yao Xuan +12
A fundamental limitation of probabilistic deep learning is its predominant reliance on Gaussian priors. This simplistic assumption prevents models from accurately capturing the com…
Ultrafast Magneto-optical Fingerprints of Altermagnetism in MnTe
Xu Yang, Xingkai Cheng, Zhuo Deng +9
Recently identified altermagnets exhibit a distinctive dual-space nature: they possess spin-split electronic bands akin to ferromagnets in momentum space while maintaining the full…
Symmetry Enforced Self-Learning Monte Carlo Method Applied to the Holstein Model
Chuang Chen, Xiao Yan Xu, Junwei Liu +3
Self-learning Monte Carlo method (SLMC), using a trained effective model to guide Monte Carlo sampling processes, is a powerful general-purpose numerical method recently introduced…
Multiple Topological Phases Controlled via Strain in Two-Dimensional Altermagnets
Zesen Fu, Mengli Hu, Aolin Li +3
Altermagnets (AMs) are an emergent class of magnetic materials that combine properties of ferromagnets and antiferromagnets, exhibiting spin-polarized Fermi surfaces and zero net m…
Spin-filtered Edge States with an Electrically Tunable Gap in a Two-Dimensional Topological Crystalline Insulator
Junwei Liu, Timothy H. Hsieh, Peng Wei +3
Three-dimensional topological crystalline insulators were recently predicted and observed in the SnTe class of IV-VI semiconductors, which host metallic surface states protected by…
Towards Iterative End-to-End Software Development: A Feature-Driven Multi-Agent Framework
Junwei Liu, Chen Xu, Chong Wang +5
Recent advances in large language model agents offer the promise of automating end-to-end software development from natural language requirements. However, existing approaches larg…
Large Language Model-Based Agents for Software Engineering: A Survey
Junwei Liu, Kaixin Wang, Yixuan Chen +4
The recent advance in Large Language Models (LLMs) has shaped a new paradigm of AI agents, i.e., LLM-based agents. Compared to standalone LLMs, LLM-based agents substantially exten…
Tunable Weyl fermions and Fermi arcs in magnetized topological crystalline insulators
Junwei Liu, Chen Fang, Liang Fu
Based on analysis and realistic tight-binding calculations, we find that time-reversal-breaking Weyl semimetals can be realized in magnetically-doped (Mn, Eu, Cr etc.) S…
Atomic-scale spin sensing of a 2D -wave altermagnet via helical tunneling
Zhuying Wang, Shuikang Yu, Xingkai Cheng +17
Altermagnetism simultaneously possesses nonrelativistic spin responses and zero net magnetization, thus combining advantages of ferromagnetism and antiferromagnetism. This superior…
Self-Learning Determinantal Quantum Monte Carlo Method
Xiao Yan Xu, Yang Qi, Junwei Liu +2
Self-learning Monte Carlo method [arXiv:1610.03137, 1611.09364] is a powerful general-purpose numerical method recently introduced to simulate many-body systems. In this work, we i…
Crystal design of altermagnetism
Zhiyuan Zhou, Xingkai Cheng, Mengli Hu +3
Symmetry plays a fundamental role in condensed matter. The unique entanglement between magnetic sublattices and alternating crystal environment in altermagnets provides a unique op…
Broadband nonlinear Hall response and multiple wave mixing in a room temperature altermagnet
Soumya Sankar, Xingkai Cheng, Xinyu Chen +10
Crystalline symmetries determine the linear and nonlinear response of materials to external stimuli such as mechanical pressure and electromagnetic fields, governing phenomena such…
Dirac mass generation from crystal symmetry breaking on the surfaces of topological crystalline insulators
Ilija Zeljkovic, Yoshinori Okada, Maksym Serbyn +12
The tunability of topological surface states (SS) and controllable opening of the Dirac gap are of fundamental and practical interest in the field of topological materials. In topo…
Odd spin symmetry and anisotropy switching in p-wave magnet CeNiAsO
Fayuan Zhang, Huaxun Li, Xingkai Cheng +18
Odd-parity magnets, complementary to altermagnets, exhibit unique properties such as high efficiency in charge-spin conversion and compatibility with conventional superconductivity…
Bridging the gap between atomically thin semiconductors and metal leads
Xiangbin Cai, Zefei Wu, Xu Han +15
Electrically interfacing atomically thin transition metal dichalcogenide semiconductors (TMDSCs) with metal leads is challenging because of undesired interface barriers, which have…
Band engineering of a magnetic thin film rare earth monopnictide
Hisashi Inoue, Minyong Han, Mengli Hu +3
Realizing quantum materials in few atomic layer morphologies is a key to both observing and controlling a wide variety of exotic quantum phenomena. This includes topological electr…