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| 1 | Effect of Spray Parameters on the Splashing of Plasma-sprayed Cast Iron Particles显示文摘To understand the effects of spray parameters on the splashing,cast iron particles were plasma-sprayed onto polished surfaces of aluminum substrate to form single splats.Various plasma arc powers and spray distances were applied to adjust the morphology of the splats which was studied using a field emission scanning electron microscope(FESEM).The experimentalresults showed that the splashing of impinging droplets was significantly restrained for the splats deposited with high arc power(30 k W)and short spray distance(80 mm).This finding would be beneficialto improving the adhesive strength of the coating. | 邢亚哲 LI Xinghang ZHANG Yong JIANG Chaoping ZHANG Weiwei | 2016 | Journal of Wuhan University of Technology(Materials Science)2016，31，2： | 2 |
| 2 | Cubic TaN diffusion barrier for Cu interconnects using an ultrathin TiN seed layer显示文摘 | Arauio Roy A Yoon Jongsik Zhang Xinghang | 2008 | Thin Solid Films2008，516，： | 1 |
| 3 | A generalized synthesis method for freestanding multiferroic twodimensional layered supercell oxide films via a sacrificial buffer layer显示文摘Multiferroics are an intriguing family of materials due to the simultaneous presence of two ferroic orderings,namely,ferroelectricity and ferromagnetism.They are scientifically and technologically important and have numerous potential applications,such as four-state logic memories and multiferroic tunneling junctions.However,the growth of epitaxial singlephase multiferroic thin films typically requires single crystalline oxide substrates,which hinders their future integration with Sibased devices.In this study,we report a generalized synthesis method that uses the polydimethylsiloxane(PDMS)-assisted wetetching method with an Sr_(3)Al_(2)O_(6)(SAO)sacrificial layer to transfer freestanding single-phase multiferroic Bi_(2)NiMnO_(6)(BNMO)films from conventional SrTiO_(3)(STO)substrates onto a Si wafer.The structures and properties of the films have been characterized before and after the transfer.These transferred films possess good multiferroic properties on Si wafers,indicating full compatibility with modern Si technology.This method can be generally applicable to other Bi-based multiferroic materials as well.Lastly,the original STO substrates after the transfer process have been recycled for preparing new batches of freestanding BNMO films,indicating a low-cost and sustainable method for manufacturing large-volume freestanding complex oxide thin films. | Jianan Shen Benson Kunhung Tsai Ke Xu Anyu Shang James PBarnard Yizhi Zhang Rahul Tripathi Zhihong Chen Xinghang Zhang Haiyan Wang | 2023 | Nano Research2023，16，7： | 0 |
| 4 | Novel self-assembled two-dimensional layered oxide structure incorporated with Au nanoinclusions towards multifunctionalities显示文摘Two-dimensional(2D)layered oxides have recently attracted wide attention owing to the strong coupling among charges,spins,lattice,and strain,which allows great flexibility and opportunities in structure designs as well as multifunctionality exploration.In parallel,plasmonic hybrid nanostructures exhibit exotic localized surface plasmon resonance(LSPR)providing a broad range of applications in nanophotonic devices and sensors.A hybrid material platform combining the unique multifunctional 2D layered oxides and plasmonic nanostructures brings optical tuning into the new level.In this work,a novel self-assembled Bi2MoO6(BMO)2D layered oxide incorporated with plasmonic Au nanoinclusions has been demonstrated via one-step pulsed laser deposition(PLD)technique.Comprehensive microstructural characterizations,including scanning transmission electron microscopy(STEM),differential phase contrast imaging(DPC),and STEM tomography,have demonstrated the high epitaxial quality and particle-in-matrix morphology of the BMO-Au nanocomposite film.DPC-STEM imaging clarifies the magnetic domain structures of BMO matrix.Three different BMO structures including layered supercell(LSC)and superlattices have been revealed which is attributed to the variable strain states throughout the BMO-Au film.Owing to the combination of plasmonic Au and layered structure of BMO,the nanocomposite film exhibits a typical LSPR in visible wavelength region and strong anisotropy in terms of its optical and ferromagnetic properties.This study opens a new avenue for developing novel 2D layered complex oxides incorporated with plasmonic metal or semiconductor phases showing great potential for applications in multifunctional nanoelectronics devices. | Di Zhang Xingyao Gao Juanjuan Lu Ping Lu Julia Deitz Jianan Shen Hongyi Dou Zihao He Zhongxia Shang C.Austin Wade Xinghang Zhang Aiping Chen Haiyan Wang | 2023 | Nano Research2023，16，1： | 0 |
| 5 | Template-assisted growth of Co-BaTiO_(3) vertically aligned nanocomposite thin films with strong magneto-optical coupling effect显示文摘Oxide-metal based nanocomposite thin films have attracted great interests owing to their unique anisotropic structure and physical properties.A wide range of Au-based oxide-metal nanocomposites have been demonstrated,while other metal systems are scarce due to the challenges in the initial nucleation and growth as well as possible interdiffusions of the metallic nanopillars.In this work,a unique anodic aluminum oxide(AAO)template was used to grow a thin Co seed layer and the following self-assembled metal-oxide(Co-BaTiO_(3))vertically aligned nanocomposite thin film layer.The AAO template allows the uniform growth of Co-seeds and successfully deposition of highly ordered Co pillars(with diameter<5 nm and interval between pillars<10 nm)inside the oxide matrix.Significant magnetic anisotropy and strong magneto-optical coupling properties have been observed.A thin Au-BaTiO_(3) template was also later introduced for further enhanced nucleation and ordered growth of the Co-nanopillars.Taking the advantage of such a unique nanostructure,a large out-of-plane(OP)coercive field(Hc)of~5000 Oe has been achieved,making the nanocomposite an ideal candidate for high density perpendicular magnetic tunneling junction(p-MTJ).A strong polar magneto-optical Kerr effect(MOKE)has also been observed which inspires a novel optical-based reading method of the MTJ states. | Zedong Hu Juanjuan Lu Hongyi Dou Jianan Shen James PBarnard Juncheng Liu Xinghang Zhang Haiyan Wang | 2024 | Nano Research2024，17，4： | 0 |
| 6 | Latitudinal differentiation and patterns of temperate and subtropical plants in the Qinling-Daba Mountains显示文摘Geographically,the Qinling-Daba Mountains serve as the main body of the north-south transitional zone of China.However,the transitional patterns of their plant species still need to be clarified.This study analyzed latitudinal variations of plant species richness,relative importance values(RIV),and plant species abundance based on plant community field survey data for 163 sample sites along three north-south transect lines in the eastern,middle,and western parts of the study areas.The difference in RIV between subtropical and temperate species(SND-RIV)was selected to reveal the latitudinal interlacing pattern of northern and southern plant species.Along the eastern(Sanmenxia-Yichang),middle(Xi’an-Dazhou),and western(Tianshui-Guangyuan)transects,the richness and RIV of subtropical plant species increased while those of temperate plant species decreased from north to south.In the eastern transect,temperate plant species richness and RIV were the highest at Shennongjia and Funiu Mountain,respectively,because of their high elevations.In the middle transect,subtropical plant species richness and RIV were the highest in the Daba Mountains.In the western transect,richness and RIV were higher for subtropical than temperate plant species from the south of Longnan.The crisscrossing areas of northern and southern plant species were∼180 km,∼100 km,and∼60 km wide for the eastern,middle,and western transects,respectively,showing a narrowing trend from east to west.For the eastern and western transects,decreases in subtropical plant species distribution from south to north could be attributed to a decrease in mean annual precipitation in the same direction.However,for the middle transect,mean annual temperature had a slightly greater influence on plant species’latitudinal distribution than the moisture index.This study provides a more solid scientific basis for future investigations of this key geographical boundary in China. | LIU Junjie ZHANG Baiping YAO Yonghui ZHANG Xinghang WANG Jing YU Fuqin LI Jiayu | 2023 | Journal of Geographical Sciences2023，33，5： | 0 |
| 7 | Realization of a full hierarchical topology in hexagonal bilayer acoustic crystals显示文摘Recently, there has been significant research interest in higher-order topological states within artificial lattices, primarily due to their potential for manipulating waves. In this study, we focus on a three-dimensional hexagonal bilayer acoustic crystal with rotation, layer, and translation degrees of freedom. By systematically reducing the crystal symmetries, we realize a full hierarchical structure of the higher-order topological states. This hierarchical progression begins with the valley-induced twodimensional surface state, followed by the one-dimensional hinge state that arises from the topological obstruction, and ultimately culminating in the zero-dimensional corner state resulting from the edge polarization mechanism. Through finite element simulations and numerical calculations of topological invariants, we confirm the topological origins of all these hierarchical states. Moreover, we successfully verified the full hierarchical topology by directly probing the acoustic field within a finitesized three-dimensional sample. This study offers novel perspectives on the fundamental research pertaining to wave modulation and the intelligent control of sound fields. | Suhao Wang Han Jia Xinghang Yang Peng Zhang Yunhan Yang Yuzhen Yang Xiaodong Li | 2023 | Science China(Physics,Mechanics & Astronomy)2023，66，10： | 0 |
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