A5043272502- Physics of Superconductivity and Magnetism
- Iron-based superconductors research
- Rare-earth and actinide compounds
- Nuclear materials and radiation effects
- Microwave Dielectric Ceramics Synthesis
- Luminescence Properties of Advanced Materials
- Perovskite Materials and Applications
- Crystallization and Solubility Studies
- Gas Sensing Nanomaterials and Sensors
- Advanced Condensed Matter Physics
- X-ray Diffraction in Crystallography
- Organic and Molecular Conductors Research
- Inorganic Chemistry and Materials
- Multiferroics and related materials
- Advanced ceramic materials synthesis
- Magnetism in coordination complexes
- GaN-based semiconductor devices and materials
- Catalysis and Oxidation Reactions
- Electronic and Structural Properties of Oxides
- Advancements in Solid Oxide Fuel Cells
- Metal and Thin Film Mechanics
- Boron and Carbon Nanomaterials Research
- Topological Materials and Phenomena
- Advanced Thermoelectric Materials and Devices
- Advanced Thermodynamic Systems and Engines
Institute of High Energy Physics
2023-2025
Chinese Academy of Sciences
2024-2025
University of Chinese Academy of Sciences
2023-2024
M.N. Mikheev Institute of Metal Physics
1999
University of Missouri–Kansas City
1989-1994
The addition of suitable dopants to ${\mathrm{ZrO}}_{2}$ can induce dramatic phase stabilization, and this dopant-induced stabilization is the basis transformation toughening zirconia-based structural ceramics. We have determined electronic structure three phases ${\mathrm{ZrO}}_{2}$, cubic, tetragonal, monoclinic, using vacuum-ultraviolet x-ray-photoemission spectroscopies, coupled with ab initio band-structure optical property calculations orthogonalized...
We report the results of a vacuum ultraviolet (VUV) study single crystal and polycrystalline AlN over range 4–40 eV compare these with theoretical optical properties calculated from first principles using an orthogonalized linear combination atomic orbitals in local density approximation. The electronic structure has two-dimensional (2D) character indicated by logarithmic divergences at 8.7 14 eV. These mark centers two sets 2D critical points which are associated N 2p→Al 3s transitions...
The optical constants of ${\mathrm{V}}_{2}$${\mathrm{O}}_{5}$ single crystals along the three principal crystallographic axes were measured with use spectroscopic ellipsometry. Theoretical derived from band-structure calculations using first-principles orthogonalized linear combination atomic orbitals (OLCAO) method. and calculated properties are presented compared.
KZn 1− x Mn (PO 3 ) phosphors have three phases. Among them, an amorphous phosphor exhibits a wide spectral range of luminescent color tunability and has no TL traps, while the β-KZn strong properties.
The pulse-tube cooler that works based on the thermoacoustic effect offers several advantages such as high stability with a long operating time, portability small size and weight, low vibration. Taking advantage of these benefits, we present high-pressure cryostat designed cooler. is compatible standard diamond anvil cell (DAC), integrated gas membrane for remote pressure control. It can quickly cool sample in DAC below 100 K be used portably various situ characterization, including optical...
Distinct positron lifetimes in ${\mathrm{C}}_{60}$ and ${\mathrm{K}}_{3}$${\mathrm{C}}_{60}$ superconductors are observed: a single lifetime (375 ps) pure ${\mathrm{C}}_{60}$, two (265 425 ${\mathrm{K}}_{3}$${\mathrm{C}}_{60}$. The densities, computed by using the self-consistent orthogonalized linear combination of atomic-orbital band structure ${\mathrm{K}}_{\mathit{x}}$${\mathrm{C}}_{60}$ (x=0, 1,2,3, 6) presented. strong dependence positron-density distribution on amount K doping,...
Here, we systematically investigated the pressure dependence of electronic transport and crystal structure GeTe using multiple methods under various hydrostatic conditions. The experiments indicated that a progressive structural evolution occurred from ambient rhombohedral phase (space group [SG]: R3m) to rock-salt (SG: Fm3̅m) then an orthorhombic Pnma). Above 50 GPa, determined developed into body-centered cubic (bcc, SG: Im3̅m) structure, which consisted site-disordered alloy. An...
The band structure and interband optical conductivity of Bi 2 CaSr Cu O 8 superconductor in the body-centered tetragonal sub-unit is calculated self-consistently using orthogonalized linear combination atomic orbitals method. result shows has both semi-metal-like semiconductor-like features with small gap overlap. strong anisotropy between in-plane z-direction components. A plasmon frequency at 6 eV predicted.
The tunability of the quasi-to-dimensional honeycomb lattice in iridate Na2IrO3 plays a crucial role realization Kitaev quantum spin liquid state, which has potential applications topological communication and computation. Here, we unveil continuous structural modification, indicated by changes relative reflection intensities d-spacings under high pressures X-ray diffraction experiments. temperature-dependent resistance at various demonstrates turnover point ∼30 GPa, below semiconductor...
We present the structural evolution and electrical transport properties in quasi-two-dimensional layered ${\mathrm{CeTe}}_{3}$ under high pressures by employing Raman spectra, synchrotron x-ray diffraction (XRD), resistance measurements. Our XRD experiments reveal suppression of charge density wave (CDW) occurring via two distinct ways at \ensuremath{\sim}6 GPa different hydrostatic environments, namely, incommensurate-to-commensurate transition distortion Te sheets quasihydrostatic...
The electronic structure of organic superconductors $\ensuremath{\kappa}\ensuremath{-}{(\mathrm{ET})}_{2}{\mathrm{Cu}[\mathrm{N}(\mathrm{CN})}_{2}]\mathrm{Br}$ and $\ensuremath{\kappa}\ensuremath{-}{(\mathrm{ET})}_{2}{\mathrm{Cu}(\mathrm{NCS})}_{2}$ has been studied in detail by means soft x-ray fluorescence spectroscopy. Cu ${L}_{3},$ S ${L}_{2,3},$ C $K\ensuremath{\alpha},$ N $K\ensuremath{\alpha}$ emission spectra are measured near the corresponding thresholds with synchrotron radiation....