Publications (43)
Emergence of Quantum Confinement in Topological Kagome Superconductor CsVSb family
Yongqing Cai, Yuan Wang, Zhanyang Hao +19
Quantum confinement is a restriction on the motion of electrons in a material to specific region, resulting in discrete energy levels rather than continuous energy bands. In certai…
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…
Synthesis and properties of free-standing monolayer amorphous carbon
Chee-Tat Toh, Hongji Zhang, Junhao Lin +12
Bulk amorphous materials have been studied extensively and are widely used, yet their atomic arrangement remains an open issue. Although they are generally believed to be Zacharias…
Fabrication of BaZrS3 chalcogenide perovskite thin films for optoelectronics
Xiucheng Wei, Haolei Hui, Chuan Zhao +14
BaZrS3 is a prototypical chalcogenide perovskite, an emerging class of unconventional semiconductor. Recent results on powder samples reveal that it is a material with a direct ban…
Optical orientation and alignment of excitons in ensembles of inorganic perovskite nanocrystals
M. O. Nestoklon, S. V. Goupalov, R. I. Dzhioev +12
We demonstrate the optical orientation and alignment of excitons in a two-dimensional layer of CsPbI perovskite nanocrystals prepared by colloidal synthesis and measure the ani…
Proton and Li-Ion Permeation through Graphene with Eight-Atom-Ring Defects
Eoin Griffin, Lucas Mogg, Guang-Ping Hao +21
Defect-free graphene is impermeable to gases and liquids but highly permeable to thermal protons. Atomic-scale defects such as vacancies, grain boundaries and Stone-Wales defects a…
Large-area and high-quality 2D transition metal telluride
Jiadong Zhou, Fucai Liu, Junhao Lin +24
Atomically thin transitional metal ditellurides like WTe2 and MoTe2 have triggered tremendous research interests because of their intrinsic nontrivial band structure. They are also…
Unsaturated Single Atoms on Monolayer Transition Metal Dichalcogenides for Ultrafast Hydrogen Evolution
Yuting Luo, Shuqing Zhang, Haiyang Pan +14
Large scale implementation of electrochemical water splitting for hydrogen evolution requires cheap and efficient catalysts to replace expensive platinum. Molybdenum disulfide is o…
Angle-resolved photoemission spectroscopy of superconducting (La,Pr)3Ni2O7/SrLaAlO4 heterostructures
Peng Li, Guangdi Zhou, Wei Lv +19
Ruddlesden-Popper bilayer nickelate thin film superconductors discovered under ambient pressure enable vast possibilities for investigating electronic structures of the superconduc…
Discovery of d-orbital order in Tb2CoAl4Ge2
Zhanyang Hao, Haohao Sheng, Wanru Ma +32
Orbital order describes a quantum state where occupied orbitals line up in a periodic pattern. While orbital physics plays a fundamental and universal role in strongly correlated e…
Signatures of unconventional superconductivity near reentrant and fractional quantum anomalous Hall insulators
Fan Xu, Zheng Sun, Jiayi Li +18
Two-dimensional moiré Chern bands provide an exceptional platform for exploring a variety of many-body quantum phases at zero magnetic field within a lattice system. One particula…
On the topological surface states of the intrinsic magnetic topological insulator Mn-Bi-Te family
Yuan Wang, Xiao-Ming Ma, Zhanyang Hao +10
We review recent progress in the electronic structure study of intrinsic magnetic topological insulators (MnBiTe)(BiTe) () family. Specifically, we f…
Correlated electronic structures and unconventional superconductivity in bilayer nickelate heterostructures
Changming Yue, Jian-Jian Miao, Haoliang Huang +12
The recent discovery of ambient-pressure superconductivity in thin-film bilayer nickelates opens new possibilities for investigating electronic structures in this new class of high…
Shifting More Attention to Breast Lesion Segmentation in Ultrasound Videos
Junhao Lin, Qian Dai, Lei Zhu +6
Breast lesion segmentation in ultrasound (US) videos is essential for diagnosing and treating axillary lymph node metastasis. However, the lack of a well-established and large-scal…
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…
Phase evolution and superconductivity enhancement in Se-substituted MoTe thin films
Peiling Li, Jian Cui, Jiadong Zhou +12
The strong spinorbit coupling (SOC) and numerous crystal phases in fewlayer transition metal dichalcogenides (TMDCs) MX (MW, Mo, and XTe, Se, S) has led to a variet…
Ferromagnetic Superconductivity in Two-dimensional Niobium Diselenide
Tingyu Qu, Shangjian Jin, Fuchen Hou +9
The co-existence of ferromagnetism and superconductivity becomes possible through unconventional pairing in the superconducting state. Such materials are exceedingly rare in solid-…
Spin mapping of intralayer antiferromagnetism and spin-flop transition in monolayer CrTe
Jing-Jing Xian, Cong Wang, Rui Li +8
Intrinsic antiferromagnetism in van der Waals (vdW) monolayer (ML) crystals enriches the understanding regarding two-dimensional (2D) magnetic orders and holds special virtues over…
Intrinsic Magnetic Topological Materials
Yuan Wang, Fayuan Zhang, Meng Zeng +13
Topological states of matter possess bulk electronic structures categorized by topological invariants and edge/surface states due to the bulk-boundary correspondence. Topological m…
Spontaneous Surface Collapse and Reconstruction in Antiferromagnetic Topological Insulator MnBiTe
Fuchen Hou, Qiushi Yao, Chun-Sheng Zhou +10
MnBiTe is an antiferromagnetic topological insulator which stimulates intense interests due to the exotic quantum phenomena and promising device applications. Surface struc…
Modulating Electronic Structure of Monolayer Transition Metal Dichalcogenides by Substitutional Nb-Doping
Lei Tang, Runzhang Xu, Junyang Tan +9
Modulating electronic structure of monolayer transition metal dichalcogenides (TMDCs) is important for many applications and doping is an effective way towards this goal, yet is ch…
Covalent 2D CrTe ferromagnet
Mengying Bian, Aleksandr N. Kamenskii, Mengjiao Han +16
To broaden the scope of van der Waals 2D magnets, we report the synthesis and magnetism of covalent 2D magnetic CrTe with a thickness down to one-unit-cell. The 2D CrTe…
Coordinated Electric Vehicle Charging Control with Aggregator Power Trading and Indirect Load Control
James J. Q. Yu, Junhao Lin, Albert Y. S. Lam +1
Due to the increasing concern for greenhouse gas emissions and fossil fuel security, electric vehicles (EVs) have attracted much attention in recent years. EVs can aggregate togeth…
Synthesis of ultrahigh-quality monolayer molybdenum disulfide through in-situ defect healing with thiol molecules
Simin Feng, Junyang Tan, Shilong Zhao +7
Monolayer transition metal dichalcogenides (TMDCs) are two-dimensional (2D) materials with many potential applications. Chemical vapour deposition (CVD) is a promising method to sy…
Probing quasi-long-range ordering by magnetostriction in monolayer CoPS3
Qiye Liu, Le Wang, Ying Fu +9
Mermin-Wagner-Coleman theorem predicts no long-range magnetic order at finite temperature in the two-dimensional (2D) isotropic systems, but a quasi-long-range order with a diverge…
Strain tunability of perpendicular magnetic anisotropy in van der Waals ferromagnets VI3
Xi Zhang, Le Wang, Huimin Su +7
Layered ferromagnets with high coercivity have special applications in nanoscale memory elements in electronic circuits, such as data storage. Therefore, searching for new hard fer…
A New Dataset and A Baseline Model for Breast Lesion Detection in Ultrasound Videos
Zhi Lin, Junhao Lin, Lei Zhu +3
Breast lesion detection in ultrasound is critical for breast cancer diagnosis. Existing methods mainly rely on individual 2D ultrasound images or combine unlabeled video and labele…
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…
The Strongest Teacher Is Not Always the Best Teacher: Student-Centric Answer Selection
Zhengyu Hu, Zheyuan Xiao, Linxin Song +10
LLM training increasingly relies on teacher-generated supervision, from synthetic responses to reasoning traces and tool-use demonstrations. Current practice often chooses the high…
Realization of Practical Eightfold Fermions and Fourfold van Hove Singularity in TaCoTe
Hongtao Rong, Zhenqiao Huang, Xin Zhang +20
Space groups describing the symmetry of lattice structure allow the emergence of fermionic quasiparticles with various degeneracy in the band structure. Theoretical efforts have pr…
Glue-Assisted Grinding Exfoliation of Large-Size 2D Materials for Insulating Thermal Conduction and Large-Current-Density Hydrogen Evolution
Liusi Yang, Dashuai Wang, Minsu Liu +11
Two-dimensional (2D) materials have many promising applications, but their scalable production remains challenging. Herein, we develop a glue-assisted grinding exfoliation (GAGE) m…
Dissolution-Precipitation Growth of Uniform and Clean Two Dimensional Transition Metal Dichalcogenides
Zhengyang Cai, Yongjue Lai, Shilong Zhao +8
Two-dimensional (2D) transition metal dichalcogenides (TMDCs) have attracted much interest and shown promise in many applications. However, it is challenging to obtain uniform TMDC…
On the price of exact truthfulness in incentive-compatible online learning with bandit feedback: A regret lower bound for WSU-UX
Ali Mortazavi, Junhao Lin, Nishant A. Mehta
In one view of the classical game of prediction with expert advice with binary outcomes, in each round, each expert maintains an adversarially chosen belief and honestly reports th…
Superconductivity and Electronic Structures of Nickelate Thin Film Superstructures
Zihao Nie, Yueying Li, Wei Lv +14
Ruddlesden-Popper (RP) nickelates have emerged as a crucial platform for exploring the mechanisms of high-temperature superconductivity. However, the Fermi surface topology require…
Gigantic-oxidative atomic-layer-by-layer epitaxy for artificially designed complex oxides
Guangdi Zhou, Haoliang Huang, Fengzhe Wang +14
In designing material functionalities for transition metal oxides, lattice structure and d-orbital occupancy are key determinants. However, the modulation of these two factors is i…
Doping Concentration Modulation in Vanadium Doped Monolayer Molybdenum Disulfide for Synaptic Transistors
Jingyun Zou, Zhengyang Cai, Yongjue Lai +7
Doping is an effective way to modify the electronic property of two-dimensional (2D) materials and endow them with new functionalities. However, wide-range control of the substitut…
Anomalous exchange bias effect in ferromagnetic VI3 flakes
Xi Zhang, Xiuquan Xia, Qiye Liu +6
The exchange bias (EB) effect, pivotal in magnetic data storage and sensing devices, has been observed not only in interfacial regions but also in intrinsic ferromagnetic materials…
Dative epitaxy of commensurate monocrystalline covalent-van der Waals moiré supercrystal
Mengying Bian, Liang Zhu, Xiao Wang +17
Realizing van der Waals (vdW) epitaxy in the 80s represents a breakthrough that circumvents the stringent lattice matching and processing compatibility requirements in conventional…
Type-II Dirac Nodal Lines in double-kagome-layered CsVSb
Yongqing Cai, Jianfeng Wang, Yuan Wang +21
Lorentz-violating type-II Dirac nodal line semimetals (DNLSs), hosting curves of band degeneracy formed by two dispersion branches with the same sign of slope, represent a novel st…
Layer-controlled Ferromagnetism in Atomically Thin CrSiTe Flakes
Cheng Zhang, Le Wang, Yue Gu +9
The research on two-dimensional (2D) van der Waals (vdW) ferromagnets has promoted the development of ultrahigh-density and nanoscale data storage. However, intrinsic ferromagnetis…
ViDSOD-100: A New Dataset and a Baseline Model for RGB-D Video Salient Object Detection
Junhao Lin, Lei Zhu, Jiaxing Shen +3
With the rapid development of depth sensor, more and more RGB-D videos could be obtained. Identifying the foreground in RGB-D videos is a fundamental and important task. However, t…
Dirac Nodal Lines and Nodal Loops in a Topological Kagome Superconductor CsVSb
Zhanyang Hao, Yongqing Cai, Yixuan Liu +21
The intertwining of charge order, superconductivity and band topology has promoted the AVSb (A=K, Rb, Cs) family of materials to the center of attention in condensed matter…
Towards High-Efficiency Cascading Outage Simulation and Analysis in Power Systems: A Sequential Importance Sampling Approach
Jinpeng Guo, Feng Liu, Jianhui Wang +2
This paper addresses how to improve the computational efficiency and estimation reliability in cascading outage analysis. We first formulate a cascading outage as a Markov chain wi…