Materials Literature
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We present detailed measurements of the longitudinal resistivity ${\ensuremath{\rho}}_{xx}(T,H)$ and the upper critical field ${H}_{c2}$ of ${\text{NdFeAsO}}_{0.7}{\text{F}}_{0.3}$ single crystals in strong dc and pulsed magnetic fields up to 45 and 60 T, respectively. We found that the field scale of ${H}_{c2}$ is co…
The structural and dielectric properties of (1− x )BaTiO 3 – x BiScO 3 ( x =0–0.5) ceramics were investigated to acquire a better understanding of the binary system, including determination of the symmetry of the phases, the associated dielectric properties, and the differences in the roles of Bi 2 O 3 and BiScO 3 sub…
Invisibility and negative refraction are both applications of transformation optics where the material of a device performs a coordinate transformation for electromagnetic fields. The device creates the illusion that light propagates through empty flat space, whereas in physical space, light is bent around a hidden in…
We experimentally demonstrate planar lenses based on nanoscale slit arrays in a metallic film. Our lens structures consist of optically thick gold films with micron-size arrays of closely spaced, nanoscale slits of varying widths milled using a focused ion beam. We find excellent agreement between electromagnetic simu…
Abstract We present theoretical analysis of bromine adsorption on the Ge(001)-p(1×2) surface. Bromine adsorbs dissociatively at the Ge(001) surface and the adlayer of bromine develops ordered structures of adatoms bound to substrate dimers. We analyse atomic configurations of the Ge(001) surface covered by 0.25, 0.5,…
Merck has developed a range of reactive liquid crystal materials (Reactive Mesogens) that are designed to form thin, birefringent, coatable films for optical applications. Reactive Mesogen (RM) films are typically coated from solution and polymerized in-situ to form thin, optics-grade coatings. Merck RM materials are…
This paper reports on the results obtained during the development of the technological process of growth of sapphire crystals for optoelectronics through horizontal directional crystallization in a gaseous argon medium at a pressure of 800 mmHg. The sapphire crystals intended for the use in optoelectronics have been g…
An open waveguide cavity formed by a pair of planar waveguides, in which one guiding layer is a negative index medium and the other is a positive index medium, is theoretically demonstrated. For such a waveguide cavity the resonant frequency is independent of the total length of the waveguide system. With the coupled…
Experimental solubilities are reported for anthracene dissolved in ternary cyclohexane + 1-propanol + 2-methyl-1-propanol, cyclohexane + 2-propanol + 2-methyl-1-propanol, cyclohexane + 1-butanol + 2-methyl-1-propanol, and cyclohexane + 2-butanol + 2-methyl-1-propanol solvent mixtures at 298.15 K and atmospheric pressu…
The potential of spectroscopic Mueller polarimetry for the dimensional characterization of periodic structures has already been discussed in several instances. With respect to standard scatterometry; the added value of the technique is related to the information contained in the 16 elements of the Mueller matrix, whil…
In recent microlithography of semiconductor fabrication, spin-on hardmask (SOH) process continue to gain popularity as it replaces the traditional SiON/ACL hardmask scheme which suffers from high CoO, low productivity, particle contamination, and layer alignment issues. In the SOH process, organic polymer with high ca…
Composites of high-density polyethylene (HDPE) and alkali-extracted steam-exploded Acacia mangium fiber (AEF) were prepared using 2-roll mill and compression molding. AEF was acetylated (AAEF) to three different wt% gains (WPG) and maleic anhydride grafted polyethylene (MAPE) was used as compatibilizer. Acetylation of…
Nanoporous anodic aluminum oxide (AAO) membrane has many advantages as a host material for a variety of magnetic materials.The magnetic materials can be embedded into the host pores by electrodeposition, sputtering, and infiltration routes.This work shows that the entire fabrication process to the magnetic nanomateria…
Many factors have effects on crystallization. The major influencing factors during protein crystallization are summarized in this paper. Recommendations are made about the basic process of crystallization and the analysis of the thermodynamic effects on crystallization, and the dynamics factors effecting crystallizati…
This paper experimentally observes the Normal Raman spectrum (NRS) and infrared absorption spectrum of methyl orange (MO) and presents theoretical vibrational spectra calculated from a density functional theory (DFT) method on the basis of B3LYP with 6–31 basis set. The calculated results show very good agreement with…
The elastic constants of DO 3 -Mg 3 RE (RE = Sc, Y, La, Ce and Lu) have been calculated at T = 0 K by applying the projector augmented wave (PAW) method within the generalized gradient approximation (GGA). The polycrystalline shear modulus, Young's modulus, Poisson's ratio and the anisotropic ratio of DO 3 -Mg 3 RE ar…
Self-complementary synthetic peptides, composed by 8 and 16 residues, were analyzed by CD, NMR and small angle neutron scattering (SANS) techniques in order to investigate the relevance of charge and hydrophobic interactions in determining their self-assembling properties. All the sequences are potentially able to for…
The influence of extrusion processing temperature profiles on the mechanical properties of oil palm empty fruit bunch-filled poly(vinyl chloride) extrudates was investigated. Only the poly(vinyl chloride) (PVC), acrylic and chlorinated polyethylene extrudates filled with 10 phr oil palm empty fruit bunch (OPEFB) were…
La vulcanitzacio per microones es un proces madur i no hi ha dubte sobre la seva eficiencia per produir articles de cautxu d'alta qualitat. Les microones son conegudes no nomes per la seva capacitat d'accelerar els processos i augmentar la eficiencia de la transferencia energetica, sino que tambe son capaces en certs…
The natural uniaxial fabric from the bark of the tree Polyalthia cerasoide was extracted. The fabric was treated with 5% aqueous NaOH solution. The primary thermograms of both untreated and the alkali treated fabrics were recorded in an inert atmosphere at a heating rate of 10°C/min. Using these thermograms, the initi…