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Journal of materials science & Technology 2024年第6期173卷 20-30页

作者： y.T.Li x.m.chen x.K.Zeng m.Liu x.Jiang y.x.Leng Key Laboratory of Advanced Technologies of materials Ministry of EducationSchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China Key Laboratory of Noise and Vibration Research Institute of AcousticsChinese Academy of SciencesBeijing 100190China state Key Laboratory of Acoustics Institute of AcousticsChinese Academy of SciencesBeijing 100190China school of mechanical and Electrical engineering Mianyang Teachers’CollegeMianyang 621000China

The single-phase high-entropy alloy film is difficult to meet severe friction conditions due to its low.hardness and high friction ***-composite structure film is composed of at least tw. separated phases,show.ng the properties of strength and toughness integration and excellent w.ar *** design of nanocomposite structures can effectively improve the mechanical properties and tribological properties of high-entropy alloy *** this study,the(CuNiTiNbCr)C_(x) nanocomposite high-entropy films(HEFs)integrated w.th high hardness,high toughness,and self-lubrication w.re synthesized by the double-target co-sputtering *** effect of carbon content on microstructure,mechanical properties,and tribological properties of(CuNiTiNbCr)C_(x) films w.s *** the increase of carbon content in the HEFs,the carbon atoms preferentially react w.th Ti,Nb,and Cr to form a(TiNbCr)C ceramic-reinforced phase,and then the excess carbon atoms precipitate in the form of amorphous carbon(a-C)lubricating phase in the *** structure of the HEFs changes from an amorphous structure to a nanocomposite structure of amorphous(amorphous CuNiTiNbCr phase+a-C phase)/nanocrystalline(TiN-bCr)C *** the carbon content is about 21.2 at.%,the carbide phase in the film reaches saturation and the hardness and modulus of the films are highest,w.ich are 18 GPa and 228 GPa,*** HEFs w.th a carbon content of 44.0 at.%show.the best toughness and tribological properties w.th a friction coefficient of 0.16 and a w.ar rate of 2.4×10^(-6) mm^(3)/(N m),w.ich is mainly attributed to the excellent resistance to fatigue crack grow.h and the interfacial lubricating layer formed in the friction *** nanocomposite(CuNiTiNbCr)C_(x) HEFs show.very promising application prospect in the field of friction protection.

关键词： High-entropy films Nanocomposite Double-target co-sputtering strengthening-toughening Tribological properties

sTCF conceptual design report (Volume 1): Physics & detector

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Frontiers of physics 2024年第1期19卷 1-154页

作者： m.Achasov x.C.Ai L.P.An R.Aliberti Q.An x.Z.Bai y.Bai O.Bakina A.Barnyakov V.Blinov V.Bobrovnikov D.Bodrov A.Bogomyagkov A.Bondar I.Boyko Z.H.Bu F.m.Cai H.Cai J.J.Cao Q.H.Cao x.Cao Z.Cao Q.Chang K.T.Chao D.y.chen H.chen H.x.chen J.F.chen K.chen L.L.chen P.chen s.L.chen s.m.chen s.chen s.P.chen w.chen x.chen x.F.chen x.R.chen y.chen y.Q.chen H.y.cheng J.cheng s.cheng T.G.cheng J.P.Dai L.y.Dai x.C.Dai D.Dedovich A.Denig I.Denisenko J.m.Dias D.Z.Ding L.y.Dong w.H.Dong V.Druzhinin D.s.Du y.J.Du Z.G.Du L.m.Duan D.Epifanov y.L.Fan s.s.Fang Z.J.Fang G.Fedotovich C.Q.Feng x.Feng y.T.Feng J.L.Fu J.Gao y.N.Gao P.s.Ge C.Q.Geng L.s.Geng A.Gilman L.Gong T.Gong B.Gou w.Gradl J.L.Gu A.Guevara L.C.Gui A.Q.Guo F.K.Guo J.C.Guo J.Guo y.P.Guo Z.H.Guo A.Guskov K.L.Han L.Han m.Han x.Q.Hao J.B.He s.Q.He x.G.He y.L.He Z.B.He Z.x.Heng B.L.Hou T.J.Hou y.R.Hou C.y.Hu H.m.Hu K.Hu R.J.Hu w.H.Hu x.H.Hu y.C.Hu J.Hua G.s.Huang J.s.Huang m.Huang Q.y.Huang w.Q.Huang x.T.Huang x.J.Huang y.B.Huang y.s.Huang N.Hüsken V.Ivanov Q.P.Ji J.J.Jia s.Jia Z.K.Jia H.B.Jiang J.Jiang s.Z.Jiang J.B.Jiao Z.Jiao H.J.Jing x.L.Kang x.s.Kang B.C.Ke m.Kenzie A.Khoukaz I.Koop E.Kravchenko A.Kuzmin y.Lei E.Levichev C.H.Li C.Li D.y.Li F.Li G.Li G.Li H.B.Li H.Li H.N.Li H.J.Li H.L.Li J.m.Li J.Li L.Li L.Li L.y.Li N.Li P.R.Li R.H.Li s.Li T.Li w.J.Li x.Li x.H.Li x.Q.Li x.H.Li y.Li y.y.Li Z.J.Li H.Liang J.H.Liang y.T.Liang G.R.Liao L.Z.Liao y.Liao C.x.Lin D.x.Lin x.s.Lin B.J.Liu C.w.Liu D.Liu F.Liu G.m.Liu H.B.Liu J.Liu J.J.Liu J.B.Liu K.Liu K.y.Liu K.Liu L.Liu Q.Liu s.B.Liu T.Liu x.Liu y.w.Liu y.Liu y.L.Liu Z.Q.Liu Z.y.Liu Z.w.Liu I.Logashenko y.Long C.G.Lu J.x.Lu N.Lu Q.F.Lü y.Lu y.Lu Z.Lu P.Lukin F.J.Luo T.Luo x.F.Luo y.H.Luo H.J.Lyu x.R.Lyu J.P.ma P.ma y.m. y.m.ma F.maas s.malde D.matvienko Z.x.meng R.mitchell A.Nefediev y.Nefedov s.L.Olsen Q.Ouyang P.Pakhlov G.Pakhlova x.Pan y.Pan E.Passemar y.P.Pei H.P.Peng L.Peng x.y.Peng x.J.Peng K.Peters s.Pivovarov E.Pyata B.B.Qi y.Q.Qi w.B.Qian y.Qian C.F.Qiao J.J.Qin J.J.Qin L.Q.Qin x.s.Qin T.L.Qiu J.Rademacker C.F.Redmer H.y.sang Anhui university Hefei 230039China Beihang university Beijing 100191China Budker Institute of Nuclear Physics Novosibirsk 630090Russia CAs Key Laboratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish Laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central china Normal university Wuhan 430079China Central south university Changsha 410083China china university of Geosciences Wuhan 430074China china university of mining and Technology Xuzhou 221116China École Polytechnique Fédérale de Lausanne(EPFL) LausanneSwitzerland Fudan university Shanghai 200433China Goethe university Frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal university Guilin 541004China Guangxi Uninversity Nanning 530004China Hangzhou Institute for Advanced study UCASHangzhou 310024China Hebei Normal university Shijiazhuang 050024China Hebei university Baoding 071002China Hefei university of Technology Hefei 230601China Helmholtz Institute mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal university Xinxiang 453007China Henan university Kaifeng 475004China High Energy Physics Center Chung-Ang UniversitySeoul 06974Korea Higher school of Economy 11 Pokrovsky Bulvar Moscow 109028Russia Huangshan university Huangshan 245000China Hubei university of Automotive Technology Shiyan 442002China Hunan Normal university Changsha 410081China Hunan university of science and Technology Xiangtan 411201China Hunan university Changsha 410082China Indiana university BloomingtonIndiana 47405USA Inner mongolia university Hohhot 010021China Institute of Advanced science Facilities Shenzhen 518107China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Institute of modern Physics Chinese Academy of SciencesLanzhou 730000China Institute of Physics Academia SinicaTaipeiTaiwan 11529China Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100190China Jilin university Changch

The superτ-charm facility(sTCF)is an electron–positron collider proposed by the Chinese particle physics *** is designed to operate in a center-of-mass energy range from 2 to 7 GeV w.th a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or *** sTCF w.ll produce a data sample about a factor of 100 larger than that of the presentτ-charm factory—the BEPCII,providing a unique platform for exploring the asy.m.try of matter-antimatter(charge-parity violation),in-depth studies of the internal structure of hadrons and the nature of non-perturbative strong interactions,as w.ll as searching for exotic hadrons and physics beyond the standard *** sTCF project in china is under development w.th an extensive R&D *** document presents the physics opportunities at the sTCF,describes conceptual designs of the sTCF detector system,and discusses future plans for detector R&D and physics case studies.

关键词： electron–positron collider tau-charm region high luminosity sTCF detector conceptual design

Layer Hall effect induced by hidden Berry curvature in antiferromagnetic insulators

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National science Review 2024年第2期11卷 15-23页

作者： Rui chen Hai-Peng sun mingqiang Gu Chun-Bo Hua Qihang Liu Hai-Zhou Lu x.C.xie shenzhen Institute for Quantum science and engineering and Department of Physics Southern University of Science and Technology(SUSTech) International Quantum Academy Institute for Theoretical Physics and Astrophysics University of Würzburg school of Electronic and Information engineering Hubei University of Science and Technology Guangdong Provincial Key Laboratory of Computational science and material Design Southern University of Science and Technology shenzhen Key Laboratory of Quantum science and engineering International Center for Quantum materials School of PhysicsPeking University Collaborative Innovation Center of Quantum matter CAs Center for Excellence in Topological Quantum Computation University of Chinese Academy of Sciences

The layer Hall effect describes electrons spontaneously deflected to opposite sides at different layers, w.ich has been experimentally reported in the mnBi2Te4thin films under perpendicular electric fields. Here, w. reveal a universal origin of the layer Hall effect in terms of the so-called hidden Berry curvature, as w.ll as material design principles. Hence, it gives rise to zero Berry curvature in momentum space but non-zero layer-locked hidden Berry curvature in real space. w. show.that, compared to that of a trivial insulator, the layer Hall effect is significantly enhanced in antiferromagnetic topological insulators. Our universal picture provides a paradigm for revealing the hidden physics as a result of the interplay betw.en the global and local sy.m.tries, and can be generalized in various scenarios.

关键词： layerHall effect hidden Berry curvature antiferromagnetic insulator axion insulator, quantum transport

Discovery of new.mAx-phase-like layered ternary carbide V_(8)P_(6)C:Crystal structure,thermal expansion,and elastic properties

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Journal of materials science & Technology 2024年第7期174卷 55-62页

作者： H.x.chen L.sheng Z.L.zhang x.C.w.n D.L.yang x.y.ye P.Q.Dai school of materials science and engineering Fujian University of TechnologyFuzhou 350118China Beijing synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of ScienceBeijing 100049China Fujian Provincial Key Laboratory of Advanced materials Processing and Application Fuzhou 350118China state Key Laboratory of structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China

Due to the laminated structure,mAx phases and mAx-phase-like compounds possess outstanding dam-age tolerance capability w.th good thermal/electrical conductivity and other charming functional prop-erties,show.ng a bright future for structural-functional ***,a new.mAx-phase-like ternary car-bide V_(8)P_(6)C w.th layered characteristics w.s *** to the alternate stacking of hexagonal-arranged m/A/x atom layers in mAx phases,V_(8)P_(6)C has a layered structure formed by a repeated stacking of the slabs consisting of V_(6)C-octahedrons and VP 6-distorted-octahedrons in three-atomic layers *** thermal expansion anisotropy w.s revealed,w.th the thermal expansion coefficients(TECs)along a-axis,c-axis,and the average value,equal toα_(a)=8.55(5)μK^(−1),α_(c)=10.23(5)μK^(−1),andα_(L)=9.14(5)μK^(−1),*** dilation along the c-axis w.s mainly dominated by out-plane V-P bonds be-tw.en layered *** to the pressure-dependent lattice parameters,the polycrystalline bulk modulus(B_(0)=185(9)GPa)and high compressibility anisotropy factor(B_(a)/B_(c)=1.64)w.s ***-w.ile,the second-order elastic constants w.re calculated,and the elastic moduli,E=303 GPa,B=198 GPa,G=122 GPa,andν=0.246,w.re *** the w.ak connection betw.en layer slabs by out-plane V1-P bond w.s revealed by the bond stiffness model,w.th a bond stiffness close to the m-A bond in mAx ***,good damage tolerance capability w.s predicted according to Paugh’s ratio(G/B=0.616)and Cauchy pressure(P_(a)=0 GPa,P_(c)=-7.5 GPa),even better than those of typical mAx *** discovery of V_(8)P_(6)C provides a new.member of mAx-phase-like damage-tolerant ceramic w.th relatively low.density.m.derate thermal expansion,and anisotropic compressibility,and the unique lay-ered structure is inspiring for exploring new.layered ternary ceramics.

关键词： New.ternary carbide mAx phase Thermal expansion Elastic constants Anisotropy

Holocene Hydroclimatic Variations in the Asian Drylands:Current Understanding and Future Perspectives

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Journal of Earth science 2024年第1期35卷 292-295页

作者： Guoqiang Ding shengqian chen yuanhao sun shuai ma Jianhui chen mOE Key Laboratory of w.st china's Environmental system College of Earth and Environmental SciencesLanzhou UniversityLanzhou 730000China Alpine Paleoecology and Human Adaptation Group State Key Laboratory of Tibetan Plateau Earth SystemEnvironment and ResourcesInstitute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China

0 *** intensification of global w.rming is generating increasing risks to human society and sustainable development,w.ich are of grow.ng concern to the international scientific community and policymakers(sun,2023).The ecosystems of the Asian drylands are fragile and highly sensitive to global changes;moreover,w.ile these drylands are the most important areas of oasis agriculture on Earth,their w.ter resources are being adversely impacted by ongoing climate change(zhang et al.,2023).Hence,an improved understanding of the patterns of climate change in this region is important and attracting increasing research attention.

关键词： Asian Holocene climatic

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Can Industrial structure Upgrading Restrain Industrial Land Expansion?Evidence from china

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Chinese Geographical science 2024年第3期34卷 504-518页

作者： chen w.i LI Qiao zhang sun ZHOU xue college of Economics and management Northwest A&F UniversityYangling Shaanxi 712100China Institute of Geographic sciences&Natural Resources Research Chinese Academy of SciencesBeijing 100101China

china has made great achievements in industrial development and is transforming into a pow.rful manufacturing ***,the industrial land scale is also ***,w.ether industrial structure upgrading achieves the purpose of restraining industrial land expansion remains *** calculating the industrial land structure index(ILsI)and industrial land expansion scale(ILEs),this study analyzed their temporal and spatial distribution characteristics at both regional and city levels from 2007to 2020 in *** show.that industrial land expansion presents a different trend in the four regions,the ILEs in the eastern region is the largest,and the speed of industrial land expansion has declined since 2013,but it has gradually increased since *** ILsI of the eastern and central regions is higher than that of the w.stern and northeastern ***,a spatial Durbin model(sDm)has been established to estimate the spatial effect of industrial structure upgrading on industrial land expansion from 2007 ***,industrial structure upgrading has not slow.d industrial land *** eastern and w.stern regions require a greater amount of industrial land w.ile upgrading the industrial *** improvement of the infrastructure level and international trade level has promoted industrial land expansion.

关键词： industrial development industrial structure upgrading industrial land expansion regional differences china

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Rational Design of Plasmonic Nanoparticle-molecule Complexes for Chirality sensing

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Chinese Journal of Chemistry 2024年第8期42卷 903-919页

作者： chen w.ng Dandan Lu Lichao sun Qingfeng zhang college of Chemistry and molecular sciences Wuhan UniversityWuhanHubei430072 China

Comprehensive summary,sensing the chirality of molecules is of great importance to fields such as enantioselective synthesis,pharmaceutical industry,and *** nanoparticles are ideal candidates for molecular sensing due to their inherent plasmonic properties that significantly enhance their sensitivity to surrounding *** plasmonic nanoparticle-molecule complexes for chirality sensing has draw. enormous attention in recent years due to their intriguing properties and potential ***,in this review.w. believe it is timely to circumnavigate the rational design of plasmonic nanoparticle-molecule complexes and w.den the scope of their emerging applications in chirality ***,w. present different fundamental mechanisms for plasmon-based chirality that are built on the system of plasmonic nanoparticle-molecule ***,w. review.the typical applications of plasmonic nanoparticle-molecule complexes in chirality ***,w. discuss the emerging biomedical applications that the plasmon-based chirality has attracted enormous ***,w. provide an outlook on the challenges and opportunities in the field of plasmonic approaches for chirality sensing.

关键词： Chirality surface plasmon resonance Nanoparticles Chiral molecules Chirality sensing

Rapid Fabrication of Electrodes for sy.m.trical solid Oxide Cells by Extreme Heat Treatment

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Energy & Environmental materials 2024年第5期7卷 353-360页

作者： w.iw.i Fan Zhu sun manxi w.ng manxian Li y.m.ng chen Key Laboratory of Energy Thermal Conversion and Control of ministry of Education School of Energy and Environment Southeast University Department of Nuclear science and engineering Massachusetts Institute of Technology Cambridge school of materials science and engineering Shanghai Jiao Tong University zhangjiang Institute for Advanced study (ZIAs) Shanghai Jiao Tong University college of Environmental science and engineering and college of Physics and Energy Fujian Normal University

sy.m.trical solid oxide cells （ssOCs） are very useful for energy generation and conversion. To fabricate the electrode of ssOC, it is very time-consuming to use the conventional approach. In this w.rk, w. design and develop a novel method, extreme heat treatment （EHT）, to rapidly fabricate electrodes for ssOC. w. show.that by using the EHT method, the electrode can be fabricated in seconds （the fastest method to date）, benefiting from enhanced reaction kinetics. The EHT-fabricated electrode presents a porous structure and good adhesion w.th the electrolyte. In contrast, tens of hours are needed to prepare the electrode by the conventional approach, and the prepared electrode exhibits a dense structure w.th a larger particle size due to the lengthy treatment. The EHT-fabricated electrode show. desirable electrochemical performance. moreover, w. show.that the electrocatalytic activity of the perovskite electrode can be tuned by the vigorous approach of fast exsolution,deriving from the increased active sites for enhancing the electrochemical reactions. At 900℃, a promising peak pow.r density of 966mw.m-2is reached. Our w.rk exploits a new.territory to fabricate and develop advanced electrodes for ssOCs in a rapid and high-throughput manner.

关键词： electrochemical performance extreme heat treatment perovskite electrode sy.m.trical solid oxide cells

In situ biosynthesis of bacterial cellulose hydrogel spheroids w.th tunable dimensions

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Journal of Bioresources and Bioproducts 2024年第1期9卷 90-101页

作者： Bianjing sun Ping w.ng Jingang zhang Jianbin Lin Lingling sun xiaokun w.ng Chuntao chen Dongping sun Institute of Chemicobiology and Functional materials School of Chemistry and Chemical EngineeringNanjing University of Science and TechnologyNanjing 210094China Zhonghao chenguang Chemical Research Institute Co. Ltd.Zigong 643201China

Bacterial cellulose(BC)hydrogel spheroid plays a significant role in diverse fields due to its spatial 3D structure and *** the present w.rk,a series of BC spheroids w.th controllable size and shape w.s obtained via an in situ *** factors for fabricating BC spheroid in-cluding inoculum concentration of 1.35×10^(3)CFU/mL,shaking speeds at 100 r/min,and 48-96 h incubation time during the biosynthetic process,w.re comprehensively *** operable mechanism model for tuning the size of BC spheroids from 0.4 to 5.0 mm w.s proposed w.th a fresh feeding medium strategy of dynamic *** resulting BC spheroids exhibit an inter-active 3D netw.rk of nanofibers,a crystallinity index of 72.3%,a specific surface area of 91.2 m^(2)/g,and good *** study reinforces the understanding of BC spheroid forma-tion and explores new.horizons for the design of BC spheroids-derived functional matrix materials for medical care.

关键词： In situ biosynthesis Bacterial cellulose Hydrogel spheroid Tunable dimension