Materials Literature
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We report density functional calculations addressing the electronic structure and magnetic properties of delafossite PdCrO${}_{2}$. We find substantial magnetic interactions in the $c$-axis direction as well as beyond first nearest neighbors in-plane, so that PdCrO${}_{2}$ is a three-dimensional (3D) frustrated antife…
Crystal-melt interface morphological transformation of differently oriented SiGe crystals with different Ge concentrations was observed, and the effect of Ge concentration on critical growth velocity (Vc) for the interface morphological transformation was investigated. A planar-to-faceted morphological transformation…
The weight gain method is employed to study the vertical capillary flow of wetting liquids in polyester nonwoven fabrics with different basis weights. The quantity of liquid absorbed by capillarity...
Paraconductivity of the optimally K-doped SrFe 2 As 2 superconductor is investigated within existing fluctuation mechanisms. The in-plane excess conductivity has been measured in high-quality single crystals, with a sharp superconducting transition at T c = 35.5 K and a transition width less than 0.3 K. The data have…
Industrial discharges from manufacturing streptomycin sulfate (SS) are inhibitory to biological wastewater treatment and need to be stripped of residual SS. For effective SS recovery from the wastewater, a two-stage foam separation technology was investigated using a column with a vertical ellipsoid-shaped channel (VE…
A mixture of hard-sphere particles and model emulsion droplets is studied with a Brownian dynamics simulation. We find that the addition of nonwetting emulsion droplets to a suspension of pure hard spheres can lead to both gas-liquid and fluid-solid phase separations. Furthermore, we find a stable fluid of hard-sphere…
Abstract Malic acid, a molecule containing two carboxyl groups per molecule, was grafted to polyurethane (PU) through a carbamate group. The polymer was transformed to the anionic carboxylate form to observe the impact on the tensile strength and shape recovery of the PU. The electrostatic repulsion of the carboxylate…
This chapter contains sections titled: Introduction Calculations Results Conclusion Acknowledgements
Organic heterojunctions comprising of n-type fluorinated copper-phthalocyanine (F16CuPc) and p-type cobalt-phthalocyanine (CoPc) layers were prepared on (001) LaAlO3 substrates. In the entire temperature range of 300–30 K, F16CuPc/CoPc heterojunctions showed an ohmic conduction with three order of magnitude lower resi…
Titanium oxide (TiO(2)) nanostructures have been attracting consistent focus in the past few years because of their enhanced power in solar-energy conversion. Surface and interface play a crucial role in the determination of thermodynamic stability and electronic structure of TiO(2) nanostructures. The rutile (110) na…
We investigate the isotropic–anisotropic phase transitions and the conformation of combined main-chain/side-chain liquid crystal polymers (MCSCLCPs) by numerically solving semiflexible chain self-consistent field theory (SCFT) equations with the pseudospectral method. Two kinds of interactions are involved: the global…
Thermal transport at carbon nanotube (CNT) interfaces was investigated by characterizing the interfacial thermal conductance between metallic or semiconducting CNTs and three different surfactants. We thereby resolved a difference between metallic and semiconducting CNTs. CNT portions separated by their electronic typ…
We report here a Cu(II)-Schiff base complex that can assemble into one-dimensional (1D) nanoscale fibers, belts, and rods under different synthetic conditions. The ligand-structure effect is investigated by modification of the ligand structure. The formation of a 1D nanostructure was studied, and the formation of dime…
We aimed to quantify the number, type and arrangement of skin follicles in Huacaya and Suri alpaca skin and correlate their follicle characteristics with fibre traits of harvested fibre and compared these relationships with those of Merino sheep. Fibre and skin samples were collected from the mid-side of 12 Huacaya al…
We demonstrate single-electron pumping in a gate-defined carbon nanotube double quantum dot. By periodic modulation of the potentials of the two quantum dots, we move the system around charge triple points and transport exactly one electron or hole per cycle. We investigate the pumping as a function of the modulation…
Chemical-reduced graphene oxide (rGO) films were deposited on titanium (Ti)-coated silicon substrates by a simple electrophoretic deposition. The rGO films were annealed under argon atmosphere at different temperatures. The morphology and microstructure of the rGO films before and after annealing were characterized us…
We study the spin- and vacancy-ordered states in 122 iron chalcogenides (${A}_{1\ensuremath{-}y}$Fe${}_{2\ensuremath{-}x}$Se${}_{2}$) by inspecting the magnetic ground states of a ${J}_{1}$-${J}_{2}$-${J}_{3}$ model on different vacancy-ordered lattices observed/conjectured in these compounds. A highly frustrated ${J}…
Abstract Scale deposition in producing wellbores is a serious problem in the industry. The problem gets worse, when the scale is caused due to barium and strontium salts. These salts are difficult to clean as they are not easily soluble in any kinds of solution or chelating agents. In case of offshore operation, the s…
The operation of multi-finger graphene quantum capacitance varactors fabricated using a planarized local bottom gate electrode, HfO2 gate dielectric, and large-area graphene is described. As a function of the gate bias, the devices show a room-temperature capacitance tuning range of 1.22–1 over a voltage range of ±2 V…
Joint experimental and theoretical work is presented on two quadrupolar D-π-A-π-D chromophores characterized by the same bulky donor (D) group and two different central cores. The first chromophore, a newly synthesized species with a malononitrile-based acceptor (A) group, has a V-shaped structure that makes its absor…