A5043143606- Physics of Superconductivity and Magnetism
- Block Copolymer Self-Assembly
- 2D Materials and Applications
- Iron-based superconductors research
- Topological Materials and Phenomena
- Advanced Condensed Matter Physics
- Graphene research and applications
- Advanced Polymer Synthesis and Characterization
- Magnetic and transport properties of perovskites and related materials
- Surfactants and Colloidal Systems
- Combustion and Detonation Processes
- Epoxy Resin Curing Processes
- Composite Material Mechanics
- Conducting polymers and applications
- Electrocatalysts for Energy Conversion
- Rare-earth and actinide compounds
- Nanomaterials for catalytic reactions
- Fuel Cells and Related Materials
- Perovskite Materials and Applications
- Advanced ceramic materials synthesis
- Risk and Safety Analysis
- Fire dynamics and safety research
- Injection Molding Process and Properties
- Machine Learning in Materials Science
- Silicone and Siloxane Chemistry
Southern University of Science and Technology
2018-2023
Nanjing University
2015-2022
Guangzhou Institute of Energy Conversion
2016-2020
University of Chinese Academy of Sciences
2016-2020
National Laboratory of Solid State Microstructures
2019
Chinese Academy of Sciences
2016-2018
Collaborative Innovation Center of Advanced Microstructures
2015-2017
Sichuan University
2012-2017
Fujian Institute of Research on the Structure of Matter
2016
Ford Motor Company (United States)
2013-2015
Kitaev interactions underlying a quantum spin liquid have long been sought, but experimental data from which their strengths can be determined directly, are still lacking. Here, by carrying out inelastic neutron scattering measurements on high-quality single crystals of α-RuCl_{3}, we observe spin-wave spectra with gap ∼2 meV around the M point two-dimensional Brillouin zone. We derive an effective-spin model in strong-coupling limit based energy bands obtained first-principles calculations,...
Abstract 2D atomic sheets of transition metal dichalcogenides (TMDs) have a tremendous potential for next‐generation optoelectronics since they can be stacked layer‐by‐layer to form van der Waals (vdW) heterostructures. This allows not only bypassing difficulties in heteroepitaxy lattice‐mismatched semiconductors desired functionalities but also providing scheme design new that surpass the fundamental limitations on their conventional semiconductor counterparts. Herein, novel h‐BN/p‐MoTe 2...
We perform Raman spectroscopy studies on $\ensuremath{\alpha}\text{\ensuremath{-}}{\mathrm{RuCl}}_{3}$ at room temperature to investigate its phase transitions of magnetism and structure under pressure. The measurements resolve two critical pressures ${p}_{1}=1.1$ GPa ${p}_{2}=1.7$ with very different structural magnetic behaviors. With increasing pressure, a stacking order transition occurs ${p}_{1}$, indicated by the new modes. appearance infrared active modes in spectrum usually results...
An unexpected superconductivity enhancement is reported in decompressed In 2 Se 3 . The onset of occurs at 41.3 GPa with a critical temperature ( T c ) 3.7 K, peaking 47.1 GPa. striking observation shows that this layered chalcogenide remains superconducting decompression down to 10.7 More surprisingly, the highest lower pressures 8.2 twofold increase same crystal structure as compression. It found evolution driven by pressure‐induced R ‐3 m I ‐43 d structural transition and significant...
The goal of this research was to develop a method for noninvasive blood glucose assay. Near-infrared (NIR) spectroscopy and Raman spectroscopy, two more promising techniques compared other methods, were investigated in kinds artificial plasma (AP). Calibration models generated by performing partial least squares (PLS) regression optimized individually considering spectral range, pretreatment number model factors. spectroscopic validated the determination glucose, results show that...
Systematic experiments were carried out on explosions of coal dust-inertant mixtures. Explosion severity was gained by using Siwek 20 L vessel and factors strongly influencing inerting effectiveness, such as deflagration mechanism inertant composition taken into account. Tests thermal-gravimetric analysis conducted to identify the reaction dust explosions. As a result, bituminous deflagrates via homogeneous mechanism, while anthracite mainly features heterogeneous reaction. Results reveal...
In article number 1805656, Rui Chen, Liyuan Zhang, Youpin Gong, and co-workers develop an h-BN/MoTe2/graphene/SnS2/h-BN van der Waals heterostructure to realize ultrahigh-sensitivity broadband (405–1550 nm) photodetector, due its unique advantages for high-efficiency light absorption exciton dissociation. Graphene plays a key role in enhancing the sensitivity broadening spectral range, providing viable approach toward future ultrahigh photodetectors.
The single layer of Zirconium pentatelluride (ZrTe 5 ) has been predicted to be a large-gap two-dimensional (2D) topological insulator, which attracted particular attention in the phase transitions and potential device application.Here we investigated transport properties ZrTe films with dependence thickness from few nm several hundred nm.We find that temperature resistivity anomaly's peak (T p is inclining increase as decreases, around critical ~40 nm, dominating carriers change n-type...
Recently, the layered transition metal dichalcogenide 1T′ MoTe 2 has attracted considerable attention due to its non-saturating magnetoresistance, type-II Weyl semimetal properties, superconductivity, and potential candidate for two-dimensional (2D) topological insulator in single- few-layer limit. Here this work, we perform systematic transport measurements on thin flakes of prepared by mechanical exfoliation. We find that are superconducting have an onset temperature T c up 5.3 K, which...
We present inelastic neutron scattering results of phonons in ${({\mathrm{Pb}}_{0.5}{\mathrm{Sn}}_{0.5})}_{1\ensuremath{-}x}{\mathrm{In}}_{x}\mathrm{Te}$ powders, with $x=0$ and 0.3. The sample is a topological crystalline insulator, the $x=0.3$ superconductor bulk superconducting transition temperature ${T}_{c}$ 4.7 K. In both samples, we observe unexpected van Hove singularities phonon density states at energies 1--2.5 meV, suggestive local modes. On cooling through ${T}_{c}$, there an...
In this work, well-ordered platinum (Pt) nanocubes (NCs), with precise control on the size and spatial arrangement, are synthesized from a microemulsion overgrowth in block copolymer (BC) nanotemplate. The nanovials self-assembled BC template serve as microreactors for reduction of HCl/H2PtCl6 precursor direct ordered periodic arrangement reduced Pt nanoparticles (NPs). As content HCl increases 0% to 25%, NPs evolve quasi-spheres NCs, which density functional theory (DFT) computation reveals...
Gate tunable two-dimensional (2D) superconductors offer significant advantages in studying superconducting phase transitions. Here, we address superconductivity exfoliated 1T'-MoTe
Surface reactivity is important in modifying the physical and chemical properties of surface-sensitive materials, such as topological insulators. Even though many studies addressing insulators towards external gases have been reported, it still under heavy debate whether how react with ${\mathrm{H}}_{2}\mathrm{O}$. Here, we employ scanning tunneling microscopy to directly probe surface reaction $\mathrm{B}{\mathrm{i}}_{2}\mathrm{T}{\mathrm{e}}_{3}$ Surprisingly, found that only top quintuple...
Abstract The semiconducting metal phosphorus trichalcogenides (MPX 3 , X = S, Se), a new family of layered atomic materials similar to the transition‐metal dichalcogenides, have recently attracted great attention owing their 2D magnetic properties as well wide range tunable bandgaps, which can lead promising applications in spintronic and optoelectronic devices. Herein, an uncooled bolometer based on FePSe layers is reported, competitive temperature coefficient resistance (TCR) ≈−2.96% K −1...
We have performed systematic resistivity and inelastic neutron scattering measurements on Fe$_{0.98-z}$Ni$_z$Te$_{0.5}$Se$_{0.5}$ samples to study the impact of Ni substitution transport properties low-energy ($\le$ 12 meV) magnetic excitations. It is found that, with increasing doping, both conductivity superconductivity are gradually suppressed; in contrast, spectral weight changes little. Comparing Co Cu substitution, we find that effects for same degree grow systematically as atomic...
Iron-chalcogenide FeTe0.55Se0.45 was found to be a promising topological superconducting candidate recently, which may host Majorana bound state in the vortex core and thus attracts intensive research interests this material. In report, mechanically exfoliated thin films close two-dimensional (2D) limit, i.e. sample thickness is on order of coherence length, were studied systematically by means electrical transport point-contact Andreev-reflection spectroscopy (PCARS) measurements. The...