A5073390040- Topological Materials and Phenomena
- Laser-Matter Interactions and Applications
- Advanced Electron Microscopy Techniques and Applications
- Photonic and Optical Devices
- 2D Materials and Applications
- Graphene research and applications
- Hydrogen embrittlement and corrosion behaviors in metals
- Mechanical and Optical Resonators
- Quantum Information and Cryptography
- Cold Atom Physics and Bose-Einstein Condensates
- Nuclear Materials and Properties
- Corrosion Behavior and Inhibition
- Quantum many-body systems
- Advanced Fiber Laser Technologies
- Quantum and electron transport phenomena
- Quantum optics and atomic interactions
- Nonlinear Photonic Systems
- Nuclear and radioactivity studies
- Near-Field Optical Microscopy
- Non-Destructive Testing Techniques
- Quantum Mechanics and Non-Hermitian Physics
- Intermetallics and Advanced Alloy Properties
- MXene and MAX Phase Materials
- Quantum Mechanics and Applications
- Neural Networks and Reservoir Computing
University of Manchester
2025
Henry Royce Institute
2025
ShanghaiTech University
2023-2024
Technion – Israel Institute of Technology
2019-2024
Weizmann Institute of Science
2018-2023
Tel Aviv University
2018-2019
United States Nuclear Regulatory Commission
2003-2018
Dalian Jiaotong University
2017-2018
Southwest Research Institute
1999-2017
Nanjing University
2014-2017
The progress in exploiting new electronic materials and devices has been a major driving force solid-state physics. As state of matter, Weyl semimetal (WSM), particularly type-II WSM, hosts fermions as emergent quasiparticles may harbor novel electrical transport properties because the exotic Fermi surface. Nevertheless, such WSM material not experimentally observed nature. In this work, by performing systematic magneto-transport studies on thin films predicted candidate WTe2, we observe...
By combining a high-κ dielectric substrate and high density of charge carriers, Coulomb impurities in MoS2 can be effectively screened, leading to an unprecedented room-temperature mobility ≈150 cm2 V−1 s−1 phonon-limited transport monolayer transistor for the first time. As service our authors readers, this journal provides supporting information supplied by authors. Such materials are peer reviewed may re-organized online delivery, but not copy-edited or typeset. Technical support issues...
The combination of high-quality Al2 O3 dielectric and thiol chemistry passivation can effectively reduce the density interface traps Coulomb impurities, leading to a significant improvement mobility transition charge transport from insulating metallic regime. A record high 83 cm(2) V(-1) s(-1) (337 ) is reached at room temperature (low temperature) for monolayer WS2 . theoretical model electron also developed.
Two-dimensional transition metal dichalcogenides are emerging with tremendous potential in many optoelectronic applications due to their strong light-matter interactions. To fully explore photoconductive detectors, high responsivity and weak signal detection required. Here, we present phototransistors based on few-layer rhenium disulfide (ReS2). Depending the back gate voltage, source drain bias incident optical light intensity, maximum attainable photoresponsivity can reach as 88,600 A W-1,...
Recent progresses on Floquet topological phases have shed new light time-dependant quantum systems, among which one-dimensional (1D) systems been under extensive theoretical research. However, an unambiguous experimental observation of these 1D has still lacking. Here, by periodically bending ultrathin metallic arrays coupled corrugated waveguides, a photonic simulator was well designed and successfully fabricated to simulate the driven Su-Schrieffer-Heeger model. Intriguingly, moderate...
Global warming is caused by the increasing amount of greenhouse gases in atmosphere. The Kyoto Protocol to United Nations Framework Convention on Climate Change defines carbon dioxide (CO), methane (CH:), nitrous oxide (N0) fluorocarbons (HFC), holocarbon (PFC), and sulfur hexafluoride (SF.) Six are divided into main gases, which CO, largest proportion emissions, an important man-made gas." As gas affecting global effect (75%), CO atmosphere has increased from 315 ppm 1958 417 2022, annual...
Abstract Recently it was demonstrated that Sr intercalation provides a new route to induce superconductivity in the topological insulator Bi 2 Se 3 . Topological superconductors are predicted be unconventional with an odd-parity pairing symmetry. An adequate probe test for is upper critical field, B c For standard BCS layered superconductor shows anisotropy when magnetic field applied parallel and perpendicular layers, but isotropic rotated plane of layers. Here we report measurements...
Abstract Recent realization of nontrivial topological phases in photonic systems has provided unprecedented opportunities steering light flow novel manners. Based on the Su–Schriffer–Heeger (SSH) model, a topologically protected optical mode was successfully demonstrated plasmonic waveguide array with kinked interface that exhibits robust nonspreading feature. However, under same excitation conditions, another antikinked structure seemingly cannot support such mode, which appears to be...
van der Waals (vdW) heterojunctions formed by two-dimensional (2D) materials have attracted tremendous attention due to their excellent electrical/optical properties and device applications. However, current 2D are largely limited atomic crystals, hybrid organic/inorganic structures rarely explored. Here, we fabricate the heterostructures with p-type dioctylbenzothienobenzothiophene (C8-BTBT) n-type MoS2. We find that few-layer C8-BTBT molecular crystals can be grown on monolayer MoS2 vdW...
We propose superluminal solitons residing in the momentum gap (k gap) of nonlinear photonic time crystals. These are structured as plane waves space while being periodically self-reconstructing wave packets time. The emerge from modes with infinite group velocity causing evolution, which is opposite stationary nature analogous Bragg soliton at edge an energy (or a spatial zero velocity. explore faster-than-light pulsed propagation these k-gap view Einstein's causality by introducing...
Memristive devices based on vertical heterostructures of graphene and TiOx show a significant power reduction that is up to ∼10(3) times smaller than conventional structures. This arises as result tunneling barrier at the interface. The tunable, opening possibility engineering several key memory characteristics.
Do the wavepacket-size of free-electron wavefunction and its history have physical effect in interaction with light? Here we answer this problem by analyzing a QED model, considering both spontaneous stimulated emission quantized radiation field. For coherent (Glauber state), confirm that emission/absorption photons has dependence on wavepacket size decays when it exceeds interacting wavelength, consistently complementarily Schrodinger equation analysis acceleration classical electromagnetic...
Topological photonics was initially inspired by the quantum-optical analogy between Schr\"odinger equation for an electron wavefunction and paraxial a light beam. Here, we reveal unexpected phenomenon in topological pumping observed arrays of nonparaxial optical waveguides where becomes invalid. We predict theoretically demonstrate experimentally asymmetric when injected field transfers from one side waveguide array to other whereas reverse process is unexpectedly forbidden. Our finding...
Numerical investigation of the phase-matched interaction slow electrons with a strong optical field unveils tunable trapping, opening door for manipulating free in low-energy regime.
Low-cost porous ceramic microspheres from waste gangue were prepared by simple spray drying and subsequent calcination. Effects of calcination temperature on phase microstructure evolution, specific surface area, pore structure, dye adsorption mechanism the investigated systematically. Results showed that spherical, with some mesopores both inside spheres. The kept kaolinite after calcined at 800 900°C transformed into mullite 1000°C. 800°C larger capacity removal efficiency than those...
Here we present a semiclassical analysis of spontaneous and stimulated radiative emission from unmodulated optically-modulated electron quantum wavepackets. We show that the emission/absorption corresponding deceleration/acceleration wavepackets depend on controllable 'history-dependent' wavepacket size. The characteristics interaction when size (duration) is short relative to radiation wavelength, are close predictions classical point-particle modeling. On other hand, in long-sized limit,...
We reveal the classical and quantum regimes of free electron interaction with radiation, common to general variety radiation sources (e.g., a Smith-Purcell radiation), dielectric laser accelerator, photo-induced near-field microscopy (PINEM). Modeling initial conditions coherent wave packet, its topology in phase space uniquely defines universal distinction three regimes: point-particle-like acceleration, function (PINEM), newly reported regime anomalous PINEM (APINEM). The interference beat...
Abstract This work aims to develop multilayer coating systems enhance the long-term corrosion performance of aluminium-based components. The consists a high-performance ceramic matrix that provides physical barrier protection, and topcoat layer containing encapsulated Ce-based inhibitors, offering active protection through controlled released mechanisms. Two types nanoparticles were used for encapsulation, zeolite halloysite nanotubes, each with different release triggers kinetics....
The public and scientists constantly have different perspectives. While on a time crystal, they stand in line ask: What is crystal? Show me material that spontaneously crystalline time? This study synthesizes photonic of Floquet crystals experimentally observes its indicative period-2T beating. We explicitly reconstruct discrete time-crystalline ground state reveal using an appropriately-designed simulator the rigid period-doubling as signature spontaneous breakage time-translational...