Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTControl of the Specific Adsorption of Proteins onto Gold Surfaces with Poly(L-lysine) MonolayersBrian L. Frey, Claire E. Jordan, Steven. Kornguth, and Robert M. CornCite this: Anal. Chem. 1995, 67, 24, 4452–4457Publication Date (Print):December 15, 1995Publication History Pu…
Heavily B-doped polycrystalline diamond films ([B]≳1019 cm−3) are studied by Raman spectroscopy and electron spin resonance. The formation of an impurity band is accompanied by a Fano-type interference for the one-phonon scattering. Bands at 1200 and 500 cm−1 are observed in Raman spectroscopy for concentrations above…
The contrasting melting behavior of different surface orientations in metals can be explained in terms of a repulsive or attractive effective interaction between the solid-liquid and the liquid-vapor interface. We show how a crucial part of this interaction originates from the layering effects near the liquid metal su…
Some mathematical calculations were done that provided information about the structure and biochemistry of polyhydroxyalkanoic acid (PHA) granules and about the amounts of the different constituents that contribute to the PHA granules. The data obtained from these calculations are compared with data from the literatur…
Until now, micrometer-scale or larger crystals of the III-V semiconductors have not been grown at low temperatures for lack of suitable crystallization mechanisms for highly covalent nonmolecular solids. A solution-liquid-solid mechanism for the growth of InP, InAs, and GaAs is described that uses simple, low-temperat…
Transmittance in inhomogeneous composite structures in which the arrangement or shape of an absorbing component is anisotropic, depends on the incident direction in relation to the axes that define the anisotropy. There are easily distinguished preferred transmittance directions in a given plane of incidence. However…
The anodic oxidation of amorphous Al-32 at% Zr alloy films at high current efficiency results in amorphous anodic films, comprising a mixture of Al 2 O 3 and ZrO 2 units, of uniform composition and thickness. The use of an immobile xenon marker reveals that the films develop, under the high field, at the alloy/film an…
This book deals with the effect of crystal symmetry in determining the tensor properties of crystals. Although this is a well-established subject, the author provides a new approach using group theory and, in particular, the method of symmetry coordinates, which has not been used in any previous book. Using this appro…
An important aspect of real ferromagnetic particles is the demagnetizing field resulting from magnetostatic dipole-dipole interaction, which causes large particles to break up into domains. Sufficiently small particles, however, remain single-domain in equilibrium. This makes such small particles of particular interes…
Abstract The dendr itic cycl ophanes (dendrophanes ) 1–3 containing a [6.1.6.1]paracyclophane as the initiator core embedded in dendritic poly(ether‐amide) shells of first ( 1 ), second ( 2 ), and third ( 3 ) generation were prepared and characterized. The X‐ray crystal‐structure analyses of esters 7 and 4 , derivativ…
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” opt…
Abstract The blends of epoxidized natural rubber (50 mol %) (ENR) and poly(ethylene‐ co ‐acrylic acid) (PEA) (6 wt %) are demonstrated to be partially miscible up to 50% by weight of PEA and completely miscible beyond this proportion. The miscibility has been confirmed by a DSC study which exhibits a single second‐ord…
Ab initio local-density-functional-theory calculations of formation energies, surface stress, and multilayer relaxations are reported for the (111), (100), and (110) surfaces of Rh. The study is performed using ultrasoft pseudopotentials and plane waves in a parallel implementation. Calculated values are in good agree…
Diamond thin films, 5 μm in thickness, were grown selectively on patterns of porous silicon by hot-filament chemical vapor deposition (HFCVD). Monocrystalline p-type silicon substrates, with (100) orientation and resistivity 5–15 Ω cm, were patterned by conventional photolithography to provide a photoresist mask for s…
A range of amorphous hydrogenated carbon (a-C:H) samples have been studied using inelastic neutron spectroscopy (INS) and Fourier transform infrared (FTIR) spectroscopy. Using these complementary techniques, the bonding environments of both carbon and hydrogen can be probed in some detail, with the INS data providing…
The results of a comprehensive positronium annihilation study of the phase behaviour of carbon dioxide in porous Vycor glass are presented. Isobaric measurements of the 3 gamma :2 gamma annihilation ratio show that on cooling, the gas-liquid phase boundary is raised by ~5 K while the liquid-solid transition is depress…
Both the Young`s modulus sound velocity (V E ) and the internal friction (Q -1 ) have been measured for a polycrystalline sample of LiMn 2 O 4 in the temperature range between 35 and 350 K, using a vibrating-reed technique. The resonance frequency (f r ) employed for the measurement ranged from 0.81 kHz to 2.69 kHz at…
Interaction between two partial 90\ifmmode^\circ\else\textdegree\fi{} edge dislocations is studied with atomic-scale simulations using the effective-medium tight-binding method. A large separation between the two dislocations (up to 30 \AA{}), comparable to experimental values, is achieved with a solution of the tight…
A theory is presented for core hole polarization probed by spin polarization and magnetic dichroism in resonant photoemission. The resonant photoemission is considered as a two-step process, starting with an excitation from a core level to the valence shell, after which the core hole decays into two shallower core hol…
Characteristics of Schottky barriers formed on homoepitaxial diamond film have been studied. Current–voltage characteristics of Al contacts on both the as-grown film and the oxidized film show rectification. On the other hand, ohmic property is observed on Au/as-grown film while Au/oxidized film shows rectification. T…