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Single pair of type-III Weyl points half-metals: BaNiIO6 as an example

physical Review Materials 2023年第1期7卷 014202-014202页

作者： Guangqian Ding Jianhua Wang Zhi-Ming Yu Zeying Zhang Wenhong Wang Xiaotian Wang School of Science Chongqing University of Posts and Telecommunications Chongqing 400065 China School of Physical Science and Technology Southwest University Chongqing 400715 China Centre for Quantum Physics Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE) School of Physics Beijing Institute of Technology Beijing 100081 China Beijing Key Lab of Nanophotonics & Ultrafine Optoelectronic Systems School of Physics Beijing Institute of Technology Beijing 100081 China College of Mathematics and Physics Beijing University of Chemical Technology Beijing 100029 China School of Electronics & Information Engineering Tiangong University Tianjin 300387 China Institute for Superconducting and Electronic Materials (ISEM) University of Wollongong Wollongong 2500 Australia

The realization of Weyl systems with the minimum nonzero number of Weyl points (WPs) and full spin polarization remains challenging in topology physics and spintronic. In this paper, we used first-principles calculations and symmetry analysis to demonstrate that BaNiIO6, a dynamically and thermodynamically stable half-metallic material, hosts fully spin-polarized single-pair (SP) WPs with a charge number (C) of ±2 and a type-III band dispersion around the Fermi level. Moreover, the fully spin-polarized SP-WPs induce double-helicoid Fermi arcs on the (101¯0) surface. The half-metallic state and the spin-polarized SP-WPs are robust to uniform strains (from −10 to +8%) and onsite Hubbard-Coulomb interactions (from 0 to 6 eV). When +9 or +10% uniform strain is applied to the BaNiIO6 system, it hosts six additional type-II WPs with |C|=1 in the three-dimensional Brillouin zone in addition to the two type-III WPs with |C|=2. We hope that this paper will motivate future research into SP-WPs half-metals.

关键词： Electronic structure Weyl fermions Half-metals Density functional theory k dot p method

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Photodissociation Dynamics of CS_(2) Near 204 nm: The S(^(3)PJ)+CS(X^(1)∑^(+)) Channels

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Chinese Journal of chemical physics 2021年第1期34卷 95-101,I0012页

作者： Min Zhao Zhen-xing Li Ting Xie Yao Chang Fu-yan Wu Qin Wang Wen-tao Chen Tao Wang Xing-an Wang Kai-jun Yuan Xue-ming Yang Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics School of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefei 230026China State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China College of Science Sothern University of Science and TechnologyShenzhen 518055China

We study the phot odissociation dynamics of CS2 in the ultraviolet region using the time-sliced velocity map ion imaging *** S(3 Pj)+CS(X1E+)product channels were observed and identified at four wavelengths of 201.36,203.10,204.85 and 206.61 *** the measured images of S(3Pj=2,1,0),the vibrational states of the CS(X1E+)co-products were partially resolved and the vibrational state distributions were ***,the product total kinetic energy releases and the anisotropic parameters were *** relatively small anisotropic parameter values indicate that the S(3Pj=2丄0)+CS(X1E+)channels are very likely formed via the indirect predissociation process of *** study of the S(3Pj=2,1;0)+CS(X1E+)channels,which come from the spin-orbit coupling dissociation process of CS2,shows that nonadiabatic process plays a role in the ultraviolet photodissociation of CS2.

关键词： Carbon disulfide Time-sliced velocity map ion imaging Photodissociation

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Alternative photothermal/electrothermal hierarchical membrane for hypersaline water treatment

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SusMat 2022年第6期2卷 679-688页

作者： Miao Wang Wen He Yuhui Hua Xinwen Xie Shiyan Chen Lei Zhou Yunmao Zhang Yaqi Hou Shihong Lin Haiping Xia Jing Zheng Xu Hou State Key Laboratory of Physical Chemistry of Solid Surfaces Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamenChina College of Materials Xiamen UniversityXiamenChina Research Institute for Biomimetics and Soft Matter Fujian Provincial Key Laboratory for Soft Functional Materials ResearchJiujiang Research InstituteCollege of Physical Science and TechnologyXiamen UniversityXiamenChina Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis Department of ChemistrySouthern University of Science and TechnologyShenzhenChina Collaborative Innovation Center of Chemistry for Energy Materials(iChEM) Xiamen UniversityXiamenChina Department of Civil and Environmental Engineering Vanderbilt UniversityNashvilleTennesseeUSA Interdisciplinary Material Science Program Vanderbilt UniversityNashvilleTennesseeUSA Tan Kah Kee Innovation Laboratory Xiamen UniversityXiamenChina Engineering Research Center of Electrochemical Technologies of Ministry of Education Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamenChina

Over the last decades,the treatment of the large quantities of hypersaline wastewater generated by conventional industries,inland desalination,and fossil-fueled power plants has been an important economic issue and also an inescapable green ***,we developed a versatile interfacial heating membrane with alternating utilization of electricity or solar energy for hypersaline water *** hierarchical membrane functions both as a separation membrane and an interface heater,which can quickly(<0.1 s)convert electricity or solar energy into heat to evaporate the outermost layer of hypersaline *** 10wt% hyper-saline water,the freshwater production rate can reach 16.8kg/m^(2)⋅h by applying a voltage of 10 V and 1.36 kg/m^(2)⋅h under 1-sun ***,it exhibits high electrochemical resistance to corrosion and therefore remains stable tack-ling hypersaline water(>5 wt%),with a high salt rejection rate of 99.99%.This system shows an efficient desalination strategy that can provide fresh water from brines for agriculture and industry,and even for daily life.

关键词： carbon nanotubes electrothermal hypersaline water treatment interface evaporate pho-tothermal

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Simultaneous creation of multiple vortex-antivortex pairs in momentum space in photonic lattices

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Advanced Photonics 2023年第6期5卷 92-100页

作者： Feng Li Sergei V.Koniakhin Anton V.Nalitov Evgeniia Cherotchenko Dmitry D.Solnyshkov Guillaume Malpuech Min Xiao Yanpeng Zhang Zhaoyang Zhang Xi'an Jiaotong University Key Laboratory for Physical Electronics and Devices of the Ministry of EducationShaanxi Key Laboratory of Information Photonic TechniqueSchool of Electronic Science and EngineeringFaculty of Electronics and InformationXi’anChina Institute for Basic Science Center for Theoretical Physics of Complex SystemsDaejeonRepublic of Korea Korea University of Science and Technology(UST) Basic Science ProgramDaejeonRepublic of Korea Moscow Institute of Physics and Technology DolgoprudnyiRussia University of Wolverhampton Faculty of Science and EngineeringWolverhamptonUnited Kingdom ITMO University St.PetersburgRussia Ioffe Institute St.PetersburgRussia UniversitéClermont Auvergne Institut PascalPHOTON-N2CNRSClermont INPClermont-FerrandFrance Institut Universitaire de France ParisFrance University of Arkansas Department of PhysicsFayettevilleArkansasUnited States Nanjing University School of PhysicsNational Laboratory of Solid State MicrostructuresNanjingChina

Engineering of the orbital angular momentum(OAM)of light due to interaction with photonic lattices reveals rich physics and motivates potential *** report the experimental creation of regularly distributed quantized vortex arrays in momentum space by probing the honeycomb and hexagonal photonic lattices with a single focused Gaussian *** the honeycomb lattice,the vortices are associated with Dirac ***,we show that the resulting spatial patterns of vortices are strongly defined by the symmetry of the wave packet evolving in the photonic lattices and not by their topological *** findings reveal the underlying physics by connecting the symmetry and OAM conversion and provide a simple and efficient method to create regularly distributed multiple vortices from unstructured light.

关键词： vortex photonic lattice orbital angular momentum topology symmetry

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Enhancement of interfacial catalysis in a triphase reactor using oxygen nanocarriers

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Nano Research 2021年第1期14卷 172-176页

作者： Lu Zhou Liping Chen Zhenyao Ding Dandan Wang Hao Xie Weihai Ni Weixiang Ye Xiqi Zhang Lei Jiang Xinjian Feng College of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China Jiangsu Key Laboratory of Thin Films School of Physical Science and TechnologySoochow UniversitySuzhou215006China College of Energy Soochow Institute for Energy and Materials InnovationsSoochow UniversitySuzhou 215006China Key Laboratory of Bio-inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China School of Future Technology University of Chinese Academy of SciencesBeijing 101407China

Multiphase catalysis is used in many industrial processes;however,the reaction rate can be restricted by the low accessibility of gaseous reactants to the catalysts in water,especially for oxygen-dependent biocatalytic *** the fact that solubility and diffusion rates of oxygen in many liquids(such as perfluorocarbon)are much higher than in water,multiphase reactions with a second liquid phase are still difficult to conduct,because the interaction efficiency between immiscible phases is extremely ***,we report an efficient triphase biocatalytic system using oil core-silica shell oxygen *** design offers the biocatalytic system an extremely large water-solid-oil triphase interfacial area and a short path required for oxygen ***,the silica shell stabilizes the oil nanodroplets in water and prevents their *** oxygen-dependent oxidase enzymatic reaction as an example,we demonstrate this efficient biocatalytic system for the oxidation of glucose,choline,lactate,and sucrose by substituting their corresponding oxidase counterparts.A rate enhancement by a factor of 10-30 is observed when the oxygen nanocarriers are introduced into reaction *** strategy offers the opportunity to enhance the efficiency of other gaseous reactants involved in multiphase catalytic reactions.

关键词： biocatalysis oxidase kinetics triphase interface oil core-silica shell sphere

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Revealing the Role of d Orbitals of Transition-Metal-Doped Titanium Oxide on High-Efficient Oxygen Reduction

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CCS Chemistry 2021年第11期3卷 180-188页

作者： Fei Lu Weiwei Xie Ding Yi Yan Wang Fengchu Zhang Yong Xu Bo Zhou Shoujie Liu Xi Wang Jiannian Yao Department of Physics School of ScienceBeijing Jiaotong UniversityBeijing 100044 Key Laboratory of Photochemistry Institute of ChemistryChinese Academy of SciencesBeijing 100190 Institute of Physical Chemistry Karlsruhe Institute of TechnologyKarlsruhe 76131 Chemistry and Chemical Engineering Guangdong Laboratory Shantou 515031

Precise catalysis is critical for the high-quality catalysis ***,it remains challenging to fundamentally understand precise catalysis at the atomic orbital ***,we propose a new strategy to unravel the role of specific d orbitals in *** oxygen reduction reaction(ORR)catalyzed by atomically dispersed Pt/Co-doped Ti_(1−x)O_(2) nanosheets(Pt_(1)/Co_(1)-Ti_(1−x)O_(2))is used as a model *** z-axis d orbitals of Pt/Co-Ti realms dominate the O2 adsorption,thus triggering *** light of orbital-resolved analysis,Pt_(1)/Co_(1)-Ti_(1−x)O_(2) is experimentally fabricated,and the excellent ORR catalytic performance is further *** analysis reveals that the superior ORR performance of Pt_(1)-Ti_(1−x)O_(2) to Co_(1)-Ti_(1−x)O_(2) is ascribed to stronger activation of Ti by Pt than Co via the d-d ***,this work provides a useful tool to understand the underlying catalytic mechanisms at the atomic orbital level and opens new opportunities for precise catalyst design.

关键词： transition-metal-doped titanium oxide oxygen reduction reaction orbital-resolved analysis d-d hybridization theory-driven catalyst design

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From anti-counterfeit polymer materials to dual-mode visualization sensor based on triboelectric nanogenerator

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Nano Energy 2025年 141卷

作者： An, Yating Peng, Lin Cui, Yunjia Zhang, Ce Yang, Qiuxiang Liang, Jiandan Wang, Ning Cao, Xia School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing100083 China Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing101400 China College of Materials Science and Engineering Beijing University of Chemical Technology North Third Ring Road 15 Chaoyang District Beijing100029 China School of Physical Science & Technology Guangxi University Nanning530004 China Center for Green Innovation School of Mathematics and Physics University of Science and Technology Beijing Beijing100083 China Guangzhou Institute of Blue Energy Knowledge City Huangpu District Guangzhou510555 China

With the rapid development of flexible electronics and intelligent sensing technologies, triboelectric nanogenerators (TENGs) have garnered significant attention in the field of human-computer interaction due to their ability to convert human mechanical energy into visible light. However, traditional TENG devices often face limitations such as single functionality, low transparency, and insufficient mechanical properties, which hinder their further application in high-end fields. To address these challenges, this study proposes a simple and low-cost fabrication method, utilizing a solution-drying process to prepare ZnS:Cu@TPU films. The morphology, structure, light transmittance, and mechanical properties of the films were systematically characterized. The films exhibited excellent tensile properties (with a maximum strain of 1300 % and a corresponding tensile strength of 2.5 MPa) and high light transmittance. Additionally, the films displayed different colors under ultraviolet or infrared light irradiation. Based on the ZnS:Cu@TPU films, a contact-separation triboelectric nanogenerator (ZnS:Cu@TPU-TENG) was constructed, demonstrating a high output voltage of 240 V and remarkable stability. Furthermore, the ZnS:Cu@TPU-TENG can convert touch information into both visible light signals and electrical signals, enabling real-time touch imaging and handwriting pressure sensing, thereby functioning as a dual-mode visual sensor. This study highlights the immense potential of ZnS:Cu@TPU-TENG in high-end applications, particularly in the fields of intelligent sensing, flexible electronics, anti-counterfeiting technologies, and interactive human-machine interfaces. © 2025

关键词： Tensile strength

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High-speed and low-power molecular dynamics processing unit(MDPU)with ab initio accuracy

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npj Computational Materials 2024年第1期10卷 559-568页

作者： Pinghui Mo Yujia Zhang Zhuoying Zhao Hanhan Sun Junhua Li Dawei Guan Xi Ding Xin Zhang Bo Chen Mengchao Shi Duo Zhang Denghui Lu Yinan Wang Jianxing Huang Fei Liu Xinyu Li Mohan Chen Jun Cheng Bin Liang Weinan E Jiayu Dai Linfeng Zhang Han Wang Jie Liu College of Integrated Circuits Hunan UniversityChangsha410082P.R.China College of Electrical and Information Engineering Hunan UniversityChangsha410082P.R.China College of Computer National University of Defense TechnologyChangsha410073P.R.China Department of Physics National University of Defense TechnologyChangsha410073P.R.China DP Technology 100080 BeijingP.R.China AI for Science Institute 100080 BeijingP.R.China Academy for Advanced Interdisciplinary Studies Peking University100871 BeijingP.R.China HEDPS CAPTCollege of EngineeringPeking University100871 BeijingP.R.China School of Mathematical Science Peking University100871 BeijingP.R.China State Key Laboratory of Physical Chemistry of Solid Surfaces iChEMCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005P.R.China School of Integrated Circuits Peking University100871 BeijingP.R.China Center for Machine Learning Research Peking University100871 BeijingP.R.China Institute of Applied Physics and Computational Mathematics 100088 BeijingP.R.China Greater Bay Area Institute for Innovation Hunan UniversityGuangzhou511300P.R.China Department of Electrical and Computer Engineering University of WashingtonSeattleWA98195USA

Molecular dynamics(MD)is an indispensable atomistic-scale computational tool widely-used in various *** the past decades,nearly all ab initio MD and machine-learning MD have been based on the general-purpose central/graphics processing units(CPU/GPU),which are well-known to suffer from their intrinsic“memory wall”and“power wall”***,nowadays MD calculations with ab initio accuracy are extremely time-consuming and power-consuming,imposing serious restrictions on the MD simulation size and *** solve this problem,here we propose a special-purpose MD processing unit(MDPU),which could reduce MD time and power consumption by about 103 times(109 times)compared to state-of-the-art machine-learningMD(ab initio MD)based on CPU/GPU,while keeping ab initio *** significantly-enhanced performance,the proposed MDPU may pave a way for the accurate atomistic-scale analysis of large-size and/or longduration problems which were impossible/impractical to compute before.

关键词： consuming power MDP

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Sub-femtonewton force sensing in solution by super-resolved photonic force microscopy (Jun, 10.1038/s41566-024-01462-7, 2024)

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NATURE PHOTONICS 2024年第9期18卷 998-998页

作者： Shan, Xuchen Ding, Lei Wang, Dajing Wen, Shihui Shi, Jinlong Chen, Chaohao Wang, Yang Zhu, Hongyan Huang, Zhaocun Wang, Shen S. J. Zhong, Xiaolan Liu, Baolei Reece, Peter John Ren, Wei Hao, Weichang Lu, Xunyu Lu, Jie Su, Qian Peter Chang, Lingqian Sun, Lingdong Jin, Dayong Jiang, Lei Wang, Fan Beihang University School of Physics Beijing People’s Republic of China (GRID:grid.64939.31) (ISNI:0000 0000 9999 1211) University of Technology Sydney School of Biomedical Engineering Faculty of Engineering and Information Technology Sydney Australia (GRID:grid.117476.2) (ISNI:0000 0004 1936 7611) RMIT University Centre for Atomaterials and Nanomanufacturing School of Science Melbourne Australia (GRID:grid.1017.7) (ISNI:0000 0001 2163 3550) University of Technology Sydney Institute for Biomedical Materials and Devices (IBMD) School of Mathematical and Physical Sciences Faculty of Science Sydney Australia (GRID:grid.117476.2) (ISNI:0000 0004 1936 7611) The Australian National University Australian Research Council Centre of Excellence for Transformative Meta-Optical Systems Department of Electronic Materials Engineering Research School of Physics Canberra Australia (GRID:grid.1001.0) (ISNI:0000 0001 2180 7477) Beihang University Key Laboratory of Biomechanics and Mechanobiology (Ministry of Education) Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering Beijing People’s Republic of China (GRID:grid.64939.31) (ISNI:0000 0000 9999 1211) University of Melbourne Computing and Information Systems Department Melbourne School of Engineering Melbourne Australia (GRID:grid.1008.9) (ISNI:0000 0001 2179 088X) The University of New South Wales School of Physics Sydney Australia (GRID:grid.1005.4) (ISNI:0000 0004 4902 0432) Shaanxi Normal University School of Chemistry & Chemical Engineering Xi’an People’s Republic of China (GRID:grid.412498.2) (ISNI:0000 0004 1759 8395) The University of New South Wales Particles and Catalysis Research Laboratory School of Chemical Engineering Sydney Australia (GRID:grid.1005.4) (ISNI:0000 0004 4902 0432) University of Technology Sydney Australian Artificial Intelligence Institute Faculty of Engineering and IT Sydney Australia (GRID:grid.117476.2) (ISNI:0000 0004 1936 7611) University of

Precise force measurement is critical to probe biological events and physics processes, spanning from molecular motor’s motion to the Casimir effect, as well as the detection of gravitational waves. Yet, despite extensive technological developments, the three-dimensional nanoscale measurement of weak forces in aqueous solutions still faces major challenges. Techniques that rely on optically trapped nanoprobes are of significant potential but are beset with limitations, including probe heating induced by high trapping power, undetectable scattering signals and localization errors. Here we report the measurement of the long-distance interaction force in aqueous solutions with a minimum detected force value of 108.2 ± 510.0 attonewton. To achieve this, we develop a super-resolved photonic force microscope based on optically trapped lanthanide-doped nanoparticles coupled with nanoscale three-dimensional tracking-based force sensing. The tracking method leverages neural-network-empowered super-resolution localization, where the position of the force probe is extracted from the optical-astigmatism-modified point spread function. We achieve a force sensitivity down to 1.8 fN Hz–1/2, which approaches the nanoscale thermal limit. We experimentally measure electrophoresis forces acting on single nanoparticles as well as the surface-induced interaction force on a single nanoparticle. This work opens the avenue of nanoscale thermally limited force sensing and offers new opportunities for detecting sub-femtonewton forces over long distances and biomechanical forces at the single-molecule ***-resolved photonic force microscopy employs the fluorescence of lanthanide-doped nanoparticles as a force probe, enabling the measurement of sub-femtonewton forces with a sensitivity of 1.8 fN Hz–1/2, approaching the thermal limit.

关键词： Electrophoresis

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Hyperuniform properties of the square-triangle tilings

arXiv

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arXiv 2024年

作者： Koga, Akihisa Sakai, Shiro Matsushita, Yushu Ishimasa, Tsutomu Department of Physics Tokyo Institute of Technology Meguro Tokyo152-8551 Japan Center for Emergent Matter Science RIKEN Saitama Wako351-0198 Japan Toyota Physical and Chemical Research Institute Aichi Nagakute480-1192 Japan Division of Applied Physics Graduate School of Engineering Hokkaido University Sapporo060-8628 Japan

We study hyperuniform properties for the square-triangle tilings. The tiling is generated by a local growth rule, where squares or triangles are iteratively attached to its boundary. The introduction of the probability p in the growth rule, which controls the expansion of square and triangle domains, enables us to obtain various square-triangle random tilings systematically. We analyze the degree of the regularity of the point configurations, which are defined as the vertices on the square-triangle tilings, in terms of hyperuniformity. It is clarified that for p c (pc ∼ 0.5), the system can be regarded as a phase separation between square and triangular lattice domains and the variance of the point configurations obeys the scaling law σ2 ∼ O(R2−α) with α pc, the squares and triangles are spatially well mixed and the point configurations belong to the hyperuniform class III with the exponent 0 c. We also examine the structure factor of the square-triangle tilings. It is clarified that the peak structures in the large-wave-number regime are mostly common to all square-triangle tilings, while those in the small-wave-number regime strongly depend on whether the point configurations are hyperuniform or antihyperuniform. Copyright © 2024, The Authors. All rights reserved.

关键词： Iterative methods

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