A5091639270- Multiferroics and related materials
- Ferroelectric and Piezoelectric Materials
- Magnetic and transport properties of perovskites and related materials
- Magnetic properties of thin films
- Advanced Condensed Matter Physics
- Magnetic Properties and Applications
- Metal and Thin Film Mechanics
- Fusion materials and technologies
- Copper Interconnects and Reliability
- Dielectric properties of ceramics
- Electronic and Structural Properties of Oxides
- Advanced materials and composites
- High-Temperature Coating Behaviors
- Inorganic Chemistry and Materials
- Magnetic Properties of Alloys
- MXene and MAX Phase Materials
- High Temperature Alloys and Creep
- Boron and Carbon Nanomaterials Research
- Crystallization and Solubility Studies
- Nuclear Materials and Properties
- X-ray Diffraction in Crystallography
- Molecular Junctions and Nanostructures
- Advanced Materials Characterization Techniques
- ZnO doping and properties
- Perovskite Materials and Applications
PLA Army Engineering University
2025
University of Science and Technology Beijing
2013-2024
University of Electronic Science and Technology of China
2023-2024
Southern Medical University
2024
Northeast Normal University
2021-2023
Materials Science & Engineering
2020-2023
Qiqihar University
2023
Ruijin Hospital
2022
Huaqiao University
2021-2022
Yunnan Provincial Hospital of Traditional Chinese Medicine
2022
3D heteroepitaxial growth of BiFeO3-CoFe2O4 nanostructures leads to unique morphological patterns depending on the substrate orientations. The morphologies nanostructures, estimated using Winterbottom construction (see figure), are dependent different nucleation modes that result from differences in surface energy anisotropy. dimensions increase as temperature increases and decrease rate increases.
The control of surface properties all inorganic cesium lead halide perovskite (CsPbX3; X = Cl, Br, or I) quantum dots (QDs) is essential to achieve excellent stability and high photoluminescence yields (PLQYs). Herein, a facile method was performed simultaneously enhance the PLQYs CsPbX3 QDs by ZnX2/hexane solution post-treatment. We show that halogen defect on can be treated in controlled way, whereby "black dots" adhered as observed transmission electron microscopy have completely removed,...
LncRNA-PACERR plays critical role in the polarization of tissue-associated macrophages (TAMs). In this study, we found function and molecular mechanism PACERR TAMs to regulate pancreatic ductal adenocarcinoma (PDAC) progression.We used qPCR analyse expression M1-tissue-resident (M1-NTRMs) which were isolated from 46 PDAC tissues. The on proliferation, migration invasion confirmed through vivo vitro assays. was discussed via fluorescence situ hybridization (FISH), RNA pull-down, ChIP-qPCR,...
We report a discovery that self-assembled perovskite−spinel nanostructures can be controlled simply by selecting single-crystal substrates with different orientations. In model BiFeO3−CoFe2O4 system, (001) substrate results in rectangular-shaped CoFe2O4 nanopillars BiFeO3 matrix; contrast, (111) leads to triangular-shaped matrix, irrespective of the volume fraction two phases. This dramatic reversal is attributed surface energy anisotropy as an intrinsic property crystal.
We have grown BiFeO3 thin films on SrRuO3∕SrTiO3 and SrRuO3∕SrTiO3∕Si using liquid delivery metalorganic chemical vapor deposition. Epitaxial were successfully prepared through the systematic control of reaction deposition process. found that film composition phase equilibrium are sensitive to Bi:Fe ratio in precursor. Fe-rich mixtures show existence α-Fe2O3, while Bi-rich presence β-Bi2O3 as a second at surface. In optimized films, we able obtain an epitaxial single perovskite film....
Ferroelectric size effects in multiferroic BiFeO3 have been studied using a host of complementary measurements. The structure such epitaxial films has investigated atomic force microscopy, transmission electron and x-ray diffraction. crystal the identified as monoclinic phase, which suggests that polarization direction is close to ⟨111⟩. Such behavior also confirmed by piezoforce microscopy That reveals ferroelectricity down at least 2nm.
Abstract Predicting and understanding the cation distribution in spinels has been one of most interesting problems materials science. The present work investigates effect redistribution on structural, electrical, optical magnetic properties mixed-valent inverse spinel NiCo 2 O 4 (NCO) thin films. It is observed that films grown at low temperatures ( T < 400 °C) exhibit metallic behavior while higher > are insulators with lower ferrimagnetic-paramagnetic phase transition temperature. So...
Solar steam generation and photocatalytic degradation have been regarded as the most promising techniques to address clean water scarcity issues. Although enormous efforts devoted exploring high-efficiency generation, many challenges still remain in terms of single decontamination function, relatively low efficiency, inability practical application. Herein, we first report bioinspired fabrication black titania (BT) nanocomposites with moth-eye-like nanostructures on carbon cloth for...
Flexible electronics have a great potential to impact consumer and with that our daily life. Currently, no direct growth of epitaxial functional oxides on commercially available flexible substrates is possible. In this study, in order address challenge, muscovite, common layered oxide, used as substrate chemically similar typical oxides. We fabricated MoO2 films muscovite via pulsed laser deposition technique. A combination X-ray diffraction transmission electron microscopy confirms van der...
The structure and the interface chemistry of epitaxial BiFeO3–NiFe2O4 nanocomposite thin films on SrTiO3(001) substrates were investigated using Z-contrast imaging electron exit-wave reconstruction methods at atomic scale. results show that NiFe2O4 pillars are nonwetting with respect to substrate exhibit {111} facets surface. between BiFeO3 lies in {110} planes is semicoherent. configuration interface, BiFeO layer bonding [Ni,Fe]O2 layer, was shown have maximized continuity minimized charging.
The elastic properties and electronic structure of PtN2 with the pyrite [PtN2(C2)] were studied first-principles calculations. crystal is demonstrated to be elastically stable a lower energy than metastable fluorite proposed before. calculated shear modulus 214 GPa suggests that PtN2(C2) harder some well-known hard materials such as TiN SiC. high moduli are attributed stacking corner-shared PtN6 octahedra bonded by strong N-N covalent bonding. In contrast metallic fluorite-type phase,...
Unexpected crystal structures: The noble-metal pernitrides OsN2 and IrN2 are found to adopt structure types never before observed in nitrides (see picture; Os/Ir blue, N green). Furthermore, the structures of RuN2 RhN2, which have yet be synthesized, predicted. A pressure-induced displacive phase transition a semiconductor–metal predicted for IrN2. Supporting information this article is available on WWW under http://www.wiley-vch.de/contents/jc_2002/2007/z604151_s.pdf or from author. Please...
We report the growth and characterization of exchange bias spin valve heterostructures based on multiferroic antiferromagnet BiFeO3 Si (001) substrates. Using Co0.9Fe0.1 as ferromagnet, we demonstrate with large negative negligible training (or a decrease in field function repeated magnetic cycling) at room temperature. additionally manufacture structures that have been found to current in-plane magnetoresistance over 2.25%
We have probed the role of La substitution on ferroelectric properties epitaxial BiFeO3 films SrTiO3-templated Si. This provides a mechanism to engineer rhombohedral distortion in crystal and, thus, control domain structure and switching. With 10% substitution, (Bi0.9La0.1)FeO3 film showed well-saturated hysteresis loops with remanent polarization 45μC∕cm2, converse piezoelectric coefficient d33 45pm∕V, dielectric constant 140. Over this range coercive field systematically decreases such...
In strongly correlated oxides, heterointerfaces, manipulating the interaction, frustration, and discontinuity of lattice, charge, orbital, spin degrees freedom, generate new possibilities for next generation devices. this study, existing oxide heterostructures are examined local conduction at BiFeO(3)-CoFe(2)O(4) vertical interface is found. such hetero-nanostructures cannot only be medium coupling between phases, but also a state matter. This study demonstrates novel concept on design opens...
FePt/Au multilayers were deposited on preheated 100 °C MgO (001) single crystal substrates by magnetron sputtering. Magnetic properties and microstructure of the films studied. Results show that film possesses high coercivity HC, excellent perpendicular magnetic anisotropy (PMA), weak interparticle exchange coupling (IEC) after annealing. FePt Au can grow epitaxially along [001] direction, leading to PMA. atoms partly diffuse boundaries phases function as grain refiners particle isolators,...
Abstract Non-volatile electronic devices based on magnetoelectric multiferroics have triggered new possibilities of outperforming conventional for applications. However, ferroelectric reliability issues, such as imprint, retention and fatigue, must be solved before the realization practical devices. In this study, everlasting in heteroepitaxially constrained multiferroic mesocrystal is reported, suggesting a approach to overcome failure retention. Studied by scanning probe microscopy...
A systematic structure and property investigation of MnGen− (n = 3–14) was conducted by means density functional theory coupled with mass-selected anion photoelectron spectroscopy. This combined theoretical experimental study allows global minimum coexistence structures to be identified. It is found that the pentagonal bipyramid shape basic framework for nascent growth process 3–10), from n 10, endohedral can found. For 12, MnGe12− cluster probably includes two isomers: a major isomer...