Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
On the basis of local nonequilibrium approach, the one-dimensional model of the solute diffusion during rapid solidification of the binary alloy in the semi-infinite volume is considered. Within the scope of the model it is supposed that mass transport is described by the telegrapher equation. The basic assumption con…
The rotationally-covariant renormalization group equations of motion for the density wave amplitudes in the phase field crystal model are shown to follow from a dynamical equation driven by an effective free energy density that we derive. We show that this free energy can be written purely as a function of the strain…
We study the effects of next-nearest neighbor (NNN) interaction on the dynamic phase transition (DPT) and hysteresis loop area law in the two-dimensional ferromagnetic kinetic Ising model. We find that inclusion of the NNN interaction causes the DPT boundary of the NN kinetic Ising model to shift to larger values of m…
Thermally stimulated diffusion of Mn across the (Ga,Mn)As/GaAs interface has been studied by X-ray photoemission. Ga(0.95)Mn(0.05)As layers were capped with GaAs of different thickness 4, 6 and 8ML, and Mn diffusing through the GaAs layers was trapped on the surface by means of amorphous As covering the surface. It wa…
In situ APPES technique demonstrates that the strong metal support interaction effect (SMSI) in the Ni-ceria system is associated with the decoration and burial of metallic particles by the partially reduced support, a phenomenon reversible by evacuation at high temperature of the previously absorbed hydrogen.
Solution phase triangular silver nanoplates (TSNP) with versatile tunability throughout the visible-NIR wavelengths are presented as highly sensitive localized surface plasmon refractive index sensors. A range of 20 TSNP solutions with edge lengths ranging from 11 to 200 nm and aspect ratios from 2 to 13 have been stu…
We report that gold thermally deposited onto n-layer graphenes interacts differently with these substrates depending on the number layer, indicating the different surface properties of graphenes. This results in thickness-dependent morphologies of gold on n-layer graphenes, which can be used to identify and distinguis…
Here we use pristine graphene samples in order to analyze how the Raman peaks intensity, measured at 2.41 and 1.96 eV excitation energy, changes with the amount of doping. The use of pristine graphene allows investigating the intensity dependence close to the Dirac point. We show that the $G$ peak intensity is indepen…
We analyze a model that accounts for the inherently large thermal lattice fluctuations associated with the weak van der Waals intermolecular bonding in crystalline organic semiconductors. In these materials the charge mobility generally exhibits a "metalliclike" power-law behavior, with no sign of thermally activated…
The luminescence in a series of new bimetallic gold-silver vapochromic structures can be efficiently switched among different colors simply by exposure to solvent vapors. The emission color in these systems is controlled by both aurophilic interactions and halogen bonding, which affect the emission energy through diff…
A unique purely lanthanide-based single-molecule magnet (SMM) with an oxalate bridge has been designed through a rational synthetic approach. This strategy opens up new opportunities to design SMMs through the premeditated choice of a blocking ligand and suitable oxalate bridge.
We investigate the charge-density wave (CDW) instability in single and double layers, as well as in the bulk $2{\text{H-NbSe}}_{2}$. We demonstrate that the density functional theory correctly describes the metallic CDW state in the bulk $2{\text{H-NbSe}}_{2}$. We predict that both monolayer and bilayer ${\text{NbSe}}…
Despite considerable efforts toward the development of various sophisticated spiropyrans for metal ion sensing, less attention has been paid to organic molecule sensing. One of the major difficulties for detection of organic molecules using a spiropyran is the weak and nonspecific interaction between the spiropyran an…
The most efficient way to pack equally sized spheres isotropically in three dimensions is known as the random close packed state, which provides a starting point for many approximations in physics and engineering. However, the particle size distribution of a real granular material is never monodisperse. Here we presen…
A major goal of materials science is to create new engineering materials and optimize their cost and performance. Understanding how adjacent materials behave at their borders is an essential part of this process. Grain boundaries are the longest-known crystal defects, but although they were discovered in the mid-eight…
We point out that plasmons in doped graphene simultaneously enable low losses and significant wave localization for frequencies below that of the optical phonon branch $\ensuremath{\hbar}{\ensuremath{\omega}}_{Oph}\ensuremath{\approx}0.2\text{ }\text{eV}$. Large plasmon losses occur in the interband regime (via excita…
Partial discharge (PD) is a phenomenon that commonly occurs in the insulation of power system equipment. In this paper, PDs occurring in a single void and multi-voids were investigated. Air voids at atmospheric pressure were injected into cylindrical epoxy resin blocks to create test samples with single void and multi…
Abstract The immobilization of molybdenum (Mo) compounds on poly(4‐vinylpyridine) (P4VP) microspheres for catalytic epoxidation was reported. P4VP‐supported Mo compounds were highly efficient and selective for the epoxidation of cis ‐cyclooctene using hydrogen peroxide (H 2 O 2 ) as oxygen source. When ethanol was use…
A new approach for developing highly sensitive MOS photodetector based on the assistance of anodic aluminum oxide (AAO) membrane is proposed, fabricated, and characterized. It enables the photodetector with the tunability of not only the intensity but also the range of the response. Under a forward bias, the response…
Partial discharge (PD) plays a paramount role in determining system reliability. But noise is always a major limitation of PD measurement. Many research work shows that wavelet transform (WT) has a potential to extract PD pulse from noise environment. De-noising algorithm based on WT has three steps: decomposition, th…