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。
M Colella, Z Zhang, KS Finnie, Y Zhang, KL Smith, EJ Buck; Determination of U-oxidation states in the brannerite structure by electron energy-loss (EELS),
Fine-crystalline diamond particles are grown on standard Si atomic force microscopy tips, using hot filament-assisted chemical vapor deposition. To optimize the conditions for diamond deposition, first a series of experiments is carried out using silicon substrates covered by point-topped pyramids as obtained by wet c…
Kazuo Ishizuka, Koji Kimoto, Yoshio Bando; Improving Energy Resolution of EELS Spectra by Deconvolution using Maximum-Entropy and Richardson-Lucy Algorithm
Abstract Compounds 1,1‐di‐( N ‐pyrrolyl)methane hydroxamic acid ( II ), 1,1‐di‐( N ‐indolyl)methane hydroxamic acid ( IV ), 1,1‐di‐( N ‐carbazolyl)methane hydroxamic acid ( VI ), 1‐( N ‐pyrrolyl)‐1‐( N ‐carbazolyl)methane hydroxamic acid ( VIII ), and 1‐( N ‐pyrrolyl)‐1‐( N ‐indolyl)‐methane hydroxamic acid ( X ) were…
Magnetocaloric effect and specific heat of a La0.845Sr0.155MnO3 sample were measured over a temperature range of 4.2–300 K, to verify whether large entropy changes induced by magnetic field make possible the use of manganites for magnetic refrigeration and whether a magnetostrictive contribution to magnetocaloric effe…
A detailed analysis of nanotube (NT) nucleation from graphitic nanofragments by thermal vibration is given, outlining the role of activation energy barriers which may be significantly decreased by the interaction with amorphous carbon, fullerene-like, and carbonized metal catalyst nanoparticles. This analysis predicts…
Molecular dynamics simulations have been carried out to study the structure of a model liquid crystalline dendrimer (LCDr) in solution. A simplified model is used for a third generation carbosilane LCDr in which united atom Lennard-Jones sites are used to represent all heavy atoms in the dendrimer with the exception o…
Electron paramagnetic resonance measurements were carried out to probe the structure of Mn2+ in ZnO nanocrystals with different surface conditions, modified by an annealing process. Changes in the spectra by the annealing treatment indicate the existence of three Mn2+ centers. The first is a sextet signal SI with g=2.…
The structure of praseodymium germanium sulfide, Pr4Ge3S12, has been determined in the course of the determination of the amount of contamination of the title compound by the starting products. Its structure was assumed to be isostructural with the structure of La4Ge3S12. One Pr atom lies on a threefold axis.
Single crystals of K1−xTi1−xNbxOPO4 and K1−xTi1−xSbxOPO4 solid solutions are grown and their dielectric properties, electrical conductivity, and nonlinear optical properties are studied. Maximal content of these dopants x is found to be 0.11 for Nb and 0.23 for Sb. This doping leads to the creation of the additional p…
To clarify the factors that determine the structural relaxations in silica glass, the influence of fictive temperature on the relaxation process was investigated. It was found that the relaxations at different heat-treatment temperatures are enhanced with a rise in the fictive temperature. The structural relaxation is…
Journal Article Is SEM Noise Gaussian? Get access M Satya Prasad, M Satya Prasad EM Facility, University of Tennessee, Knoxville, TN 37996-0810 Search for other works by this author on: Oxford Academic Google Scholar David C Joy David C Joy Oak Ridge National Laboratory, Oak Ridge, TN 37831-6064 Search for other works…
Die Einführung organischer Substituenten ist eine wichtige Voraussetzung für den biologischen Einsatz von Polyoxometallaten. Modelle hierfür sind die Organozinnderivate α1- und α2-[P2W17O61{Sn(CH2)2CO2H}]7− (siehe Bild), die mit Alkoholen, Aminen sowie C-geschützten Aminosäuren gekuppelt werden können.
Er 3+ – Yb 3+ codoped TiO2 films were prepared on fused silica by sol–gel processes. The Yb3+ codoping effect on the physical characteristics and ∼1.54 μm photoluminescence (PL) properties of Er3+-doped TiO2 films was investigated. Maximum ∼1.54 μm PL intensity occurs in Er3+ (5 mol %)–Yb3+(30 mol %) codoped TiO2 samp…
Erbium biphthalocyanine (HErPc2) nanorods or nanowires were encapsulated in the cavities of MWCNTs simply by the capillary filling method. The length and the diameter of the nanowires can be easily tailored by the MWCNTs mold, capillary filling time, and the concentration of HErPc2. When the optical, electronic, and m…
The effect of spherical and sphero-cylindrical fillers on the order–disorder transition (ODT) of a symmetric diblock copolymer melt is investigated. Self-consistent equations describing the copolymer density distribution in the presence of fillers are derived. Using these equations, we calculate the excess free energy…
Heterostereocomplexes between d-PLA and l-peptides, obtained by spontaneous precipitation from acetonitrile solution, were characterized by thermal analysis and microscopic techniques. Differential scanning calorimetry showed two transition endotherms, one for the alpha form that melts at 178 degrees C and one for the…
We have investigated deformation luminescence phenomena and the constituent phases of SrMgAl6O11:Eu. The deformation luminescence is clearly visible to the naked eye in air, and the luminescence intensity is the highest among the materials reported. Using x-ray diffraction the constituent phases of SrMgAl6O11:Eu are d…
Thin films containing boron, carbon, and oxygen were synthesized by plasma-enhanced chemical vapor deposition (PE-CVD). When the thin films were exposed to humid atmosphere, nano- or micro-scale boric acid structures were observed to grow spontaneously. Depending on the relative humidity, temperature, and exposure tim…
Photobleaching of organic optical materials can be used to structure the surface layer for integrated optics applications. Linear optical properties and absorption were studied in 4-N, N-dimethylamino-4′-N′-methyl stilbazolium tosylate (DAST) organic crystals within the absorption band from 260–700 nm in order to dete…