A5100451813- Advanced Chemical Physics Studies
- Graphene research and applications
- Quantum and electron transport phenomena
- Topological Materials and Phenomena
- Laser-Matter Interactions and Applications
- Quantum, superfluid, helium dynamics
- Cold Atom Physics and Bose-Einstein Condensates
- Spectroscopy and Laser Applications
- Spectroscopy and Quantum Chemical Studies
- Advanced Fiber Laser Technologies
- Electronic and Structural Properties of Oxides
- Planetary Science and Exploration
- Solid-state spectroscopy and crystallography
- High-pressure geophysics and materials
- Laser-induced spectroscopy and plasma
- Laser-Plasma Interactions and Diagnostics
- Atmospheric Ozone and Climate
- Nonlinear Partial Differential Equations
- Spectral Theory in Mathematical Physics
- Advanced Materials Characterization Techniques
- Nonlinear Differential Equations Analysis
- Quantum many-body systems
- Photochemistry and Electron Transfer Studies
- Iron-based superconductors research
- 2D Materials and Applications
Nanjing Normal University
2023
Chinese Academy of Sciences
2021-2023
Suzhou Institute of Nano-tech and Nano-bionics
2023
École Polytechnique Fédérale de Lausanne
2021
University of Chinese Academy of Sciences
2021
University of Utah
2017-2021
Institute of Theoretical Physics
2021
Collaborative Innovation Center of Advanced Microstructures
2013-2021
Nanjing University
2013-2021
Scripps Institution of Oceanography
2020
The crystal structure of elements at zero pressure and temperature is the most fundamental information in condensed matter physics. For decades it has been believed that lithium, simplest metallic element, a complicated ground-state structure. Using synchrotron x-ray diffraction diamond anvil cells multiscale simulations with density functional theory molecular dynamics, we show previously accepted martensitic ground state metastable. actual face-centered cubic (fcc). We find isotopes under...
We report synchrotron X-ray diffraction, photoconductivity, and photoluminescence investigations of methylammonium-lead-bromide (MAPbBr3) under various stress conditions, supported by density-functional-theory (DFT) calculations. The properties MAPbBr3 show substantial dependence on the hydrostatic conditions. While nonhydrostatic compression leads to amorphization above 2.4 GPa, quasi-hydrostatic (Ar) (He) pressure, sample remains in crystalline phases. A sequence phase transitions between...
One-dimensional (1D) magnetic material systems have attracted widespread interest from researchers because of their peculiar physical properties and potential applications in spintronics devices. However, the synthesis 1D atomic chains has seldom been investigated. Here, we developed an iodine-assisted vacuum chemical vapor-phase transport (I-VCVT) method, utilizing single-walled carbon nanotubes (SWCNTs) with cavities as templates, high-quality high-efficiency fabrication CrCl3 was...
A rovibronic-state-to-rovibronic-state experiment has been performed on the reaction O(3P)+HCl(v=2,J=1,6,9)→OH(v′,N′)+Cl(2P). The O(3P) atoms are produced with a known energy by photolysis of NO2. HCl(v=2,J) molecules prepared IR excitation thermal HCl using an optical parametric oscillator. All energetically accessible OH rovibrational product levels probed laser-induced fluorescence for each rotational level. OH(v′=0,N′) distribution shows dip at N′=11, depth which decreases increasing...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDynamics of the reaction atomic oxygen(3P) + hydrogen bromide: experimental investigation and theoretical modelingKenneth G. McKendrick, David J. Rakestraw, Richard N. Zare, Rong ZhangCite this: Phys. Chem. 1988, 92, 19, 5530–5540Publication Date (Print):September 1, 1988Publication History Published online1 May 2002Published inissue 1 September 1988https://pubs.acs.org/doi/10.1021/j100330a039https://doi.org/10.1021/j100330a039research-articleACS...
A comparative study of the reaction family, Ca and Sr with rovibrationally selected HF or DF, has been carried out under single-collision conditions. thermal beam alkaline earth atoms, Sr, is fired into a low-pressure gas DF in which reagent molecules have prepared vibration–rotation state by use tunable infrared light source (optical parametric oscillator). The resulting monofluoride products, CaF SrF, are detected quantum-state-specific manner visible (dye laser) using laser induced...
Abstract Ferroelectricity is typically suppressed under hydrostatic compression because the short-range repulsions, which favor nonpolar phase, increase more rapidly than long-range interactions, prefer ferroelectric phase. Here, based on single-crystal X-ray diffraction and density-functional theory, we provide evidence of a ferroelectric-like transition from phase I 2 1 3 to R induced by pressure in two isostructural defect antiperovskites Hg Te Cl (15.5 GPa) Br (17.5 GPa)....
We report a combined experimental and theoretical study of the high pressure behavior herringbone-type hydrocarbon benz[a]anthracene (BaA) using fluorescence spectroscopy, X-ray diffraction, optical absorption, photoconductivity measurements, first-principles density functional theory (DFT) calculations. The ambient-pressure molecular solid phase BaA was found to be stable up ∼15.0 GPa. Increasing external within this region would induce reversible piezochromic colour change in sample, from...
Abstract We present a joint experimental‐modeling investigation of core cooling in small terrestrial bodies. Significant amounts light elements (S, O, Mg, Si) may compose the metallic cores planets and moons. However, effect multiple on transport properties, particular, electrical resistivity thermal conductivity, is not well constrained. Electrical experiments were conducted at 10 GPa up to 1850 K high‐purity powder mixtures Fe‐S‐O(±Mg, ±Si) systems using multianvil apparatus four‐electrode...
The two major classes of unconventional superconductors, cuprates and Fe-based have magnetic parent compounds, are layered, generally feature square-lattice symmetry. We report the discovery pressure-induced superconductivity in a nonmagnetic wide band gap 1.95 eV semiconductor, Cu2I2Se6, with unique anisotropic structure composed types distinct molecules: Se6 rings Cu2I2 dimers, which linked three-dimensional framework. Cu2I2Se6 exhibits concurrent metallization at ∼21.0 GPa critical...
We study the laser-driven electron acceleration in a transversely inhomogeneous plasma channel. find that, channel, developing of instability for and energy gain can be controlled by adjusting laser polarization angle inhomogeneity That is, we short accelerating length enhance channel
The interactions and structures of the urea-water system are studied by an all-atom molecular dynamics (MD) simulation. hydrogen-bonding network radial distribution functions adopted in MD simulations. mixtures can be classified into different regions from analysis network. urea molecule shows certain tendency to self-aggregate with mole fraction increasing. Moreover, results simulations also compare chemical shifts viscosities aqueous solutions, statistical average number hydrogen bonds...
We study the compressible quantum Navier-Stokes (QNS) equations with degenerate viscosity in three dimensional periodic domains. On one hand, we consider QNS additional damping terms. Motivated by recent works of Li and Xin [e-print arXiv:1504.06826] P. Antonelli S. Spirito [Arch. Ration. Mech. Anal. 225, 1161–1199 (2017)], construct a suitable approximate system which has smooth solutions satisfying energy inequality BD entropy estimate. Using this system, obtain global existence weak to...
We report a universal transfer methodology for producing artificial heterostructures of large-area freestanding single-crystalline WTe 2 membranes on diverse target substrates. The transferred exhibit nondestructive structure with carrier mobility comparable to that as-grown films (∼ 179–1055 cm · V −1 s ). Furthermore, the show distinct Shubnikov–de Haas quantum oscillations as well weak localization/weak anti-localization. These results provide new approach development atom manufacturing...
We discuss the development of instability for electron acceleration and energy gain electrons from laser waves in both homogeneous inhomogeneous non-planar cylindrical plasma channels. find that (i.e., acceleration) channel can be developed more quickly strongly than planar two-dimensional channel. Then, enhancement shortening length are observed. For channel, shortened by adjusting width charge density distributions.
The effect of collision energy on the magnetically tuned 6 Li– Li Feshbach resonance (FR) is investigated theoretically by using coupled-channel (CC) method for ranging from 1 μK ⋅ k B to 100 . At , positions calculated are 543.152 Gs (s wave, unit = 10 −4 T), 185.109 (p wave | m l 0), and 185.113 1), respectively. p-wave FR near 185 exibits a doublet structure 4 mGs, associated with dipole–dipole interaction. With increase energy, it found that splitting width remains same (4 mGs), s p...
Abstract We study theoretically the generation of strong entanglement two mechanical oscillators in an unresolved-sideband optomechanical cavity, using a reservoir engineering approach. In our proposal, effect unwanted counter-rotating terms is suppressed via destructive quantum interference by optical field auxiliary cavities. For arbitrary values interaction, obtained numerically. weak-coupling regime, we derive analytical expression for based on effective master equation, and obtain...
A recent 2D spinFET concept proposes to switch electrostatically between two separate sublayers with strong and opposite intrinsic Rashba effects. This exploits the spin-layer locking mechanism present in centrosymmetric materials local dipole fields, where a weak electric field can easily manipulate just one of spin channels. Here, we propose novel monolayer material within this family, lutetium oxide iodide (LuIO). It displays largest effects among (up $k_R = 0.08$ {\AA}$^{-1}$), leading...