Materials Literature
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Electrical, magnetotransport, magnetic and thermoelectric power (TEP) studies carried out on the (1 − x)Pr2/3Ba1/3MnO3 + xPdO composite system are reported here. The electrical resistivity of the pristine sample Pr2/3Ba1/3MnO3 (PBMO) exhibits two insulator–metal (I–M) transitions (TP1 and TP2). The higher temperature…
A complete structural, calorimetric, and magnetic characterisation of the 2D coordination spin crossover polymer [Fe(pmd)(2)[Cu(CN)(2)](2)] is reported. The crystal structure has been investigated below room temperature at 180 K and 90 K, and at 30 K after irradiating the sample at low temperature with green light (la…
We present an asymptotic and scaling analysis of the long-time self-diffusivity of a Brownian spherical particle in dilute polymer solutions with nonadsorbing chains. The polymer depletion zone near the particle surface is described by a continuous polymer density profile. Hydrodynamics formulated by the modified Stok…
Peptide and protein self-assembly is a well-studied phenomenon in chemistry and biology, where nanoscopic building blocks exhibit rapid self-association to reveal supramolecular aggregates of defined structural features. These superstructures are stabilized by hydrophobic interactions, hydrogen bonding and a host of o…
We describe the synthesis, structure and magnetic properties of two decanuclear Fe(III) complexes with novel core topologies, assembled using the tetra-deprotonated form of Bis-tris {2-[bis(2-hydroxyethyl)amino]-2-(hydroxymethyl)propane-1,3-diol, H5L}.
The microstructural properties of heteroepitaxial ZnO thin films prepared by laser molecular beam epitaxy (L-MBE) were investigated on SrTiO 3 substrates and BaTiO 3 /SrTiO 3 pseudo substrates with different orientations. The interface characteristics were in situ monitored by reflection high-energy electron diffracti…
One of the main concerns in the preparation of alloy nanowires is the ability to synthesize compositionally uniform nanowires along the axis. Since most of the conventional mild acidic permalloy (Ni 80 Fe 20 ) electroplating baths consist of an extremely low concentration of Fe ions compared with Ni ions, the electrod…
Abstract The rheological behavior of polyaniline‐(±champhor‐10‐sulfonic acid) 0.5 ‐ m ‐cresol [PANI‐CSA 0.5 ‐ m ‐cresol] gel nanocomposites (GNCs) with Na‐montmorillonite clay (intercalated tactoids) is studied. The shear viscosity exhibits Newtonian behavior for low shear rate (<2 × 10 −4 s −1 ) and power law vari…
Multi-wall carbon nanotubes (CNTs) were modified by an oxygen radio frequency plasma treatment, the appropriate duration of which was determined from post-treatment high-resolution transmission electron microscopy (HRTEM) images. A comparison of HRTEM results from gold-decorated pristine and plasma treated CNTs showed…
Nitrogen doped SrTiO(3) (N-STO) was fabricated by the ion implantation technique. The microstructure and photoluminescence (PL) of virgin N-STO and HF acid etched N-STO were studied in detail. X- ray diffraction measurements indicate that the nitrogen dopants can enhance the crystal structure of STO, and that there ar…
In the present study, a mathematical model is developed to analyze the wave propagation processes in shape memory alloy rods. The first order phase transformations and associated thermo-mechanical coupling effects are accounted for by employing the modified Ginzburg-Landau-Devonshire theory. The effect of internal fri…
The authors have brought to our attention the following revisions for the article listed above, published in J Biomed Mater Res 2008; 84A: 557–566. Under RESULTS, Histological analysis of the grated tube substance and isofraft, third paragraph, the first sentence has been restated as: The number of blood vessels in bo…
A number of inconsistencies are apparent in the recent research paper by Jaskolski et al. [(2007), Acta Cryst. D63, 611-620] concerning their recommendations for the values of the magnitude and resolution-dependence of the root-mean-square deviations (RMSDs) of bond lengths and angles from their restrained ideal value…
This study examines the electronic coupling between quantum dots (QDs) and molecules on their surfaces as a function of the modality of their interaction. As a probe, the energy transfer (ET) between CdSe QDs and phthalocyanines (Pcs) was monitored and evaluated with regard to the functionalization of the axial phthal…
Heat conduction in simple networks consisting of different one dimensional nonlinear chains is studied. We find that the coupling between chains has a different function in heat conduction from that in electric network (circuit). The two coupled particles form an interface and introduce an interface thermal resistance…
The biominerals calcite and aragonite are electrodeposited by electrochemically generating base in a solution containing Ca 2+ and HCO 3 - . Although calcite crystallizes in the achiral space group R 3̄ c, orientations of calcite which lack mirror or glide plane symmetry are chiral. Chiral morphologies of calcite are…
The ignition and extinction in catalytic partial oxidation (CPO) of CH4/O2 mixtures with large exhaust gas dilution (46.3% H2O and 23.1% CO2 vol.) has been investigated experimentally and numerically at 5 bar. Experiments were carried out in a short contact time Rh-coated honeycomb reactor and involved temperature mea…
Ti-rich Ti–Ni–Cu amorphous films (Ti51.9Ni41.6Cu6.5, Ti51.6Ni36.8Cu11.6, Ti51.5Ni33.1Cu15.4 and Ti51.7Ni27.4Cu20.9), formed by sputtering, were annealed at 773, 873 and 973 K for 1 h and their structures and shape memory behaviours investigated. All the films annealed at 773 K for 1 h exhibited Guinier–Preston (GP) zo…
Porous silicon samples were obtained by the electrochemical method and were impregnated with Pd by the electroless process. X-ray photoelectron spectroscopy illustrated that the surface of the samples is oxidized during the palladium deposition. Scanning electron microscopy showed how factors such as morphology and pr…
Mixed molybdenum−tungsten oxides of varying stoichiometry (Mo x W 1- x O 3, 0 < x < 1) prepared by cathodic electrodeposition from aqueous peroxo-polymolybdotungstate solutions on indium tin oxide (ITO) coated glass substrates were evaluated by variable-angle spectroscopic ellipsometry (VASE) and transmission measurem…