Materials Literature
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The spectrum of a weighted Dirac comb on the Thue-Morse quasicrystal is investigated by means of the Bombieri-Taylor conjecture, for Bragg peaks, and of a new conjecture that we call Aubry-Godrèche-Luck conjecture, for the singular continuous component. The decomposition of the Fourier transform of the weighted Dirac…
Abstract The optoelectronic response of a material governs its suitability for a wide range of applications, from photon detection to photovoltaic conversion. To conquer the material limitations and achieve improved optoelectronic responses, nanotechnology has been employed to arrange subunits with specific size‐depen…
A comparison was made between the electrochemical corrosion behaviour of electrodeposits prepared from sulphate, sulphamate and Watt's bath on mild steel substrate. Potentiodynamic polarisation tests, electrochemical impedance spectroscopy (EIS), SEM and XRD were the techniques used to characterise the corrosion behav…
This article is a part of our efforts to control the magnetic anisotropy in cyanide-based exchange-coupled systems with the eventual goal to obtain single-molecule magnets with higher blocking temperatures. We give the theoretical interpretation of the magnetic properties of the new pentanuclear complex {[Ni(II)(tmphe…
A test set of 10 molecules (open and ring forms of ozone and sulfur dioxide as well as water and hydrogen sulfide and their respective fluoro- and chloro-substituted analogs) of specific atmospheric interest has been formed as to assess the performance of various density functional theory methods in (hyper)polarizabil…
Power sector is one of the important infrastructures, which gets affected due to disasters leading to disruption in generation, transmission and distribution of electric power. One of the reasons is the deposition of pollutants on the insulators which start conducting during foggy weather conditions resulting in flash…
Understanding of colloidal nanocrystal growth mechanisms is essential for the syntheses of nanocrystals with desired physical properties. The classical model for the growth of monodisperse nanocrystals assumes a discrete nucleation stage followed by growth via monomer attachment, but has overlooked particle-particle i…
The conduction mechanism of a sol–gel driven ZnO Schottky diode has been investigated with various annealing temperatures. A dense and pore-free ZnO film has been fabricated for a metal–semiconductor–metal structure via the sol–gel method with Zn acetate as a precursor, ethanol as a solvent and ethanol amine as a chel…
Inorganic/polymer composite materials with controlled phases organized in layers with part of the inorganic material hosted by a hydrophilic polymer layer covalently bound to a hydrophobic polymer layer and the other part of the inorganic material in crystalline phases adsorbed onto the composite surface were prepared…
We measured the $^{13}\mathrm{C}$-NMR spectrum and ${T}_{1}$ of the quasi-two-dimensional organic superconductor $\ensuremath{\kappa}\mathrm{\text{\ensuremath{-}}}(\mathrm{BEDT}\mathrm{\text{\ensuremath{-}}}\mathrm{TTF}{)}_{2}\mathrm{Cu}(\mathrm{NCS}{)}_{2}$ under pressure. This material was thought to show a relation…
Size-dependent plastic flow behavior is manifested in nanoindentation, microbending, and pillar-compression experiments and plays a key role in the contact mechanics and friction of rough surfaces. Recent experiments using a hard flat plate to compress single-crystal Au nano-pyramids and others using a Berkovich inden…
Hydroxyapatite (HAP) is the major inorganic component of bones and teeth. The characterization of HAP surfaces on the molecular level is important for achieving a fundamental understanding of bone remodeling and dental caries processes. On the microscopic level, hydroxyapatite growth and dissolution reactions mainly o…
We report a method for the determination of the chiral indices of large-indexed carbon nanotubes by electron diffraction. By the use of this method, the index assignment errors, originating from the tilt of a nanotube with respect to the incident electron beam, can be directly specified. As an example, the chiral indi…
Abstract The syntheses of {‐poly( L ‐lactide) (PLLA)‐ b ‐polyisobutylene (PIB)‐} n multiblock copolymers were accomplished for the first time by chain extension of PLLA‐ b ‐PIB‐ b ‐PLLA triblock copolymers. Well‐defined PLLA‐ b ‐PIB‐ b ‐PLLA triblock copolymers with predictable M n s, low PDIs (1.10–1.18) and excellen…
The origin of the magnetism in some oxide-based diluted magnetic semiconductors is still a puzzle. In this work, significantly ferromagnetic states of the oxygen-depleted In(2)O(3)(001) surfaces are investigated on the basis of first-principles density functional calculations. Our results show that the perfect oxygen-…
Kerr spatial solitons are observed in slab chalcogenide waveguides at near-IR wavelengths. Waveguides are realized either by electron-beam evaporation or rf sputtering of a Ge-Sb-S compound deposited on oxidized silicon wafer. The Kerr coefficient of the thin film is evaluated to be 5 x 10(-18) m(2)/W from the experim…
The purpose of this work is to explore nonuniform plastic flow at small length- and time-scales. Pure single crystal copper tensile specimens were pulled along the [6¯ 5 6] crystal axis at three nominal strain-rates: 0.01%/s, 0.04%/s, and 0.10%/s. Simultaneously, the surface deformation was monitored with in situ digi…
We report thermal-expansion, lattice-constant, and specific-heat data of the series ${\text{La}}_{1\ensuremath{-}x}{A}_{x}{\text{CoO}}_{3}$ for $0\ensuremath{\le}x\ensuremath{\le}0.30$ with $A=\text{Ca}$, Sr, and Ba. For the undoped compound ${\text{LaCoO}}_{3}$, the thermal-expansion coefficient $\ensuremath{\alpha}(…
It has recently been argued on the basis of four experiments that Teflon can often be regarded as hydrophilic when considering the interaction between liquid water and the solid surface of Teflon [Gao and McCarthy, Langmuir 2008, 24, 9183-9188]. The authors also recommend that more recognition be given to "hydrophilic…
Experimental solubilities of clonazepam, diazepam, lamotrigine, and phenobarbital in binary solvent mixtures of N -methyl-2-pyrrolidone (NMP) + water at 298.2 K were reported. The solubility of clonazepam, diazepam, and lamotrigine was increased with the addition of NMP, and maximum values are in neat NMP. The solubil…