A5100729265- Magnetic Properties of Alloys
- Rare-earth and actinide compounds
- Magnetic and transport properties of perovskites and related materials
- Magnetic Properties and Applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Magnetic properties of thin films
- Electronic and Structural Properties of Oxides
- Advanced Condensed Matter Physics
- Topological Materials and Phenomena
- Semiconductor materials and devices
- Graphene research and applications
- Physics of Superconductivity and Magnetism
- Organic Electronics and Photovoltaics
- Perovskite Materials and Applications
- Conducting polymers and applications
- Multiferroics and related materials
- Gas Sensing Nanomaterials and Sensors
- Iron-based superconductors research
- Ferroelectric and Piezoelectric Materials
- Ionosphere and magnetosphere dynamics
- Mechanical and Optical Resonators
- Hydrogen Storage and Materials
- Solar and Space Plasma Dynamics
- Advanced Photocatalysis Techniques
Zunyi Medical University
2025
Sichuan Agricultural University
2025
Institute of Physics
2015-2024
Chinese Academy of Sciences
2015-2024
University of Waikato
2024
Xinjiang Agricultural University
2024
Shanghai University of Engineering Science
2024
Research Institute of Forestry
2023-2024
Chinese Academy of Forestry
2023-2024
Peking University Shenzhen Hospital
2023-2024
Three-dimensional topological insulators (TIs) are characterized by their nontrivial surface states, in which electrons have spin locked at a right angle to momentum under the protection of time-reversal symmetry. The topologically ordered phase TIs does not break any interplay between order and symmetry breaking, such as that observed superconductivity, can lead new quantum phenomena devices. We fabricated superconducting TI/superconductor heterostructure growing dibismuth triselenide...
By combining scanning tunneling microscopy and spectroscopy, angle-resolved photoemission density functional theory band calculations, we directly observe resolve the one-dimensional edge states of single bilayer (BL) Bi(111) islands on clean Bi(2)Te(3) Bi(111)-covered substrates. The are localized in vicinity step edges having an ∼2 nm wide spatial distribution real space reside energy gap BL. Our results demonstrate existence nontrivial topological as a two-dimensional insulator.
Recent studies show that two low-energy van Hove singularities (VHSs) seen as pronounced peaks in the density of states could be induced a twisted graphene bilayer. Here, we report angle-dependent VHSs slightly bilayer studied by scanning tunneling microscopy and spectroscopy. We energy difference follows $\ensuremath{\Delta}{E}_{\mathrm{vhs}}\ensuremath{\sim}\ensuremath{\hbar}{\ensuremath{\nu}}_{F}\ensuremath{\Delta}K$ between 1.0\ifmmode^\circ\else\textdegree\fi{}...
Abstract The ever‐growing portable electronics and electric vehicle draws the attention of scaling up energy storage systems with high areal‐capacity. concept thick electrode designs has been used to improve active mass loading toward achieving overall density. However, poor rate capabilities material owing increasing thickness significantly affect rapid transportation ionic electron diffusion kinetics. Herein, a new named “sub‐thick electrodes” is successfully introduced mitigate Li‐ion...
Abstract Active sites, mass loading, and Li‐ion diffusion coefficient are the benchmarks for boosting areal capacity storage capability of electrode materials lithium‐ion batteries. However, simultaneously modulating these criteria to achieve high in LIBs remains challenging. Herein, MoS 2 is considered as a suitable electroactive host material reversible establish an endogenous multi‐heterojunction strategy with interfacial Mo−C/N−Mo‐S coordination bonding that enables concurrent regulation...
The authors have designed and synthesized a family of high-performance inorganic–organic hybrid phosphor materials composed extended robust networks one, two, three dimensions. Following bottom-up solution-based synthetic approach, these structures are constructed by connecting highly emissive Cu4I4 cubic clusters via carefully selected ligands that form strong CuN bonds. They emit intensive yellow-orange light with high luminescence quantum efficiency, coupled large Stokes shift, which...
Topological insulators and graphene present two unique classes of materials, which are characterized by spin-polarized (helical) nonpolarized Dirac cone band structures, respectively. The importance many-body interactions that renormalize the linear bands near point in has been well recognized attracted much recent attention. However, renormalization helical not observed topological insulators. Here, we report experimental observation renormalized quasiparticle spectrum with a skewed single...
Epitaxial TiO 2 thin films were fabricated on LaAlO 3 single crystal substrates by RF magnetron sputtering. Ag electrodes then evaporated the to form metal–semiconductor–metal photoconductive detectors. The photodetector exhibited a maximum photoresponse of 3.63 A W −1 at 310 nm with sharp cutoff wavelength 380 nm. ultraviolet (UV)–visible response rejection ratio (R310 nm/R390 nm) was about three orders magnitude. photocurrent detectors scaled linearly applied bias and incident light...
Abstract X-ray diffraction (XRD) is routinely used to characterise Ti alloys, as it provides insight on structure-related aspects. However, there are no dedicated reports its accuracy available. To fill this gap, work aims at examining the benefits and limitations of XRD analysis for phase identification in Ti-based alloys. It worth mentioning that study analyses both standard experimental alloys but scope primarily slow cooled from high temperature, thus characterised by equilibrium...
Ba Ti O 3 single layer and La0.7Sr0.3MnO3∕BaTiO3 multilayer films were fabricated by laser molecular-beam epitaxy. The voltage tunability of these was investigated systematically in the frequency ranging from 10kHzto1MHz. results suggest that sizable arises interfacial polarization which can be strongly suppressed applied dc biases. In films, remarkable enhancement observed, because greatly enhanced an associated possibly with Maxwell-Wagner relaxation. authors’ indicate low (⩽1MHz) has a...
A large reversible negative magnetic-entropy change ΔSM has been observed in TbCoC2, accompanied by a second-order phase transition at 28K. The maximum value of −ΔSM is 15.3Jkg−1K−1 30K for magnetic-field from 0to5T, with the refrigerant capacity 354Jkg−1. In particular, also −ΔSMmax 7.8Jkg−1K−1, obtained small field 0to2T. and high low magnetic indicate that TbCoC2 may be promising candidate refrigeration temperatures.
The surface structure of the SrTiO${}_{3}$(110) polar is studied by scanning tunneling microscopy and x-ray photoelectron spectroscopy. Monophased reconstructions in (5 $\ifmmode\times\else\texttimes\fi{}$ 1), (4 (2 8), (6 8) are obtained, respectively, evolution between these phases can be tuned reversibly adjusting Ar${}^{+}$ sputtering dose or amount Sr/Ti evaporation. Upon annealing, reaches thermodynamic equilibrium that determined metal concentration. different electronic structures...
The crystal structure, electronic, and magnetic properties of Gadolinium (Gd) substituted Bi2Se3—represented by Bi1.98Gd0.02Se3—were investigated systematically scanning tunneling microscopy, angle-resolved photoemission spectroscopy, superconducting quantum interference device. Gd dopants with valence 3+ were mainly found to substitute Bi atoms. Each Gd3+ ion has a moment as large ∼6.9μB in the bulk paramagnetic state.
Abstract Fano resonance, known for its unique asymmetric line shape, has gained significant attention in photonics, particularly sensing applications. However, it remains difficult to achieve controllable parameters with a simple geometric structure. Here, novel approach of using thin‐film optical resonator porous layer generate entire spectral shapes from quasi‐Lorentzian Lorentzian is proposed and experimentally demonstrated. The glancing angle deposition technique utilized create...
A giant magnetocaloric effect was observed at room temperature in Mn1−xCrxAs compounds with x=0.006 and 0.01. The Cr dopant reduces (or even eliminates) the large thermal hysteresis of MnAs, while it lowers first-order transition from 313K for MnAs to 265K Mn0.99Cr0.01As. Near Curie temperature, a magnetic field induces phase ferromagnetic hexagonal paramagnetic orthorhombic phase, leading maximum value ΔSM 20.2J∕kgK 267K 5T change study on system may open an important searching proper...