Materials Literature
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Abstract Transparent conducting Al‐doped and Ga‐doped ZnO thin films (so‐called AZO and GZO, respectively) have been grown on glass substrates by dc magnetron sputtering under identical growth conditions. The thermal stability and the damp heat stability of AZO and GZO thin films deposited at room temperature (RT) as…
This paper presents a new homogenization formula to compute the effective electromagnetic properties for periodic metamaterials. Numerical examples showed that the effective permittivity and permeability of the composites with cubic inclusions, formerly known to have the lowest permittivity, are closer to the Hashin-S…
Coralline red algae assimilate HCO3– to precipitate CaCO3 in their tissues in the form of calcite or aragonite. A characterization of the biomolecular content and the crystalline structure of the biomineral of coralline red algae from the Pacific coast of Mexico was performed by powder X-ray diffraction (XRD), scannin…
Deep subwavelength photolithography with a metallic grating waveguide heterostructure (MGWHS) is presented and numerically demonstrated by a finite-difference time-domain method. This lithography scheme is demonstrated by interference between the diffracted waves of the mask which are enhanced by the surface plasmon p…
Characteristic normal-state charge transport is found in the oxygen-deficient iron-arsenides $Ln{\text{FeAsO}}_{1\ensuremath{-}y}$ ($Ln$: La and Nd) with the highest ${T}_{c}$'s among known Fe-based superconductors. The effect of ``doping'' in this system is mainly on the carrier scattering, quite distinct from that i…
The 62 entries listed in ICSD release 2009/1 under polar space group P 31 m correspond to 31 families of inorganic crystal structures, some with only one member. Coordinate analysis reveals, over a wide confidence range, 11 of these families as ferroelectric candidates. One includes the well known improper ferroelectr…
A series of ultrathin TiO x (0–12 nm) seeded (Ba,Sr)TiO 3 (BST) thin films have been prepared on Pt (111)/TiO x /SiO 2 /Si substrates by RF‐magnetron sputtering. Experimental results show that an ultrathin TiO x layer acts as an initial template for the BST films in the first nucleation stage, resulting in a significa…
In(2)O(3) nanowire transistors are fabricated with and without oxygen plasma exposure of various regions of the nanowire. In two-terminal devices, exposure of the channel region results in an increased conductance of the channel region. For In(2)O(3) nanowire transistors in which the source/drain regions are exposed t…
We present a model of the full thermo-mechanical evolution of a shape memory body undergoing a uniaxial tensile stress. The well-posedness of the related quasi-static thermo-inelastic problem is addressed by means of hysteresis operators techniques. As a by-product, details on a time-discretization of the problem are…
Shape memory polymers offer semi-active properties, which can be used for actuation. Possible applications are deployment or release mechanisms in spacecraft, or the shape readjustment of high precision composite parts. For these kinds of applications, especially the recovered energy density, which is the product of r…
In contrast to experimental evidence regarding the postorbital bar, postorbital septum, and browridge, there is exceedingly little evidence regarding the load-bearing nature of soft-tissue structures of the mammalian circumorbital region. This hinders our understanding of pronounced transformations during primate orig…
We have developed hybrid amphiphilic polymers consisting of a silicone backbone modified with hydrocarbon chains and hydrolyzed silk peptides. These polymers are molecularly soluble neither in water nor in most of organic solvent, but are attractive with these solvents. We assume that this property enables the polymer…
Abstract Magnesium is a key determinant in calcite (CaCO 3 ) mineralization having a notable significance upon the carbonate growth. Magnesium is also present in CaCO 3 mineral scale formation which is a persistent and expensive problem in oil and gas production. In the present work, we attempt to treat CaCO 3 calcite…
Depletion-induced phase separation in mixtures of charged silica particles and nonadsorbing polymer near theta conditions (polystyrene in dimethylformamide) was studied. The colloid-polymer size ratio q was varied through the particle size and the electrical double layer thickness (kappa(-1)) through addition of lithi…
This paper is devoted to the study of a polarization independent reflector made with a multilayered configuration grating structure with a multi-subpart profile. Rigorous coupled-wave analysis for multilayered grating structures is adopted to investigate the properties of the reflector. It is shown that over a broadba…
Grafting of polystyrene (PS) from silica coating of silicon carbide nanowires (SiCNWs) has been performed by a two-step nitroxide mediated free radical polymerization (NMP) of styrene. First, an alkoxyamine based on N-tert-butyl-N-(1-diethylphosphono-2,2-dimethylpropyl) nitroxide (DEPN) was covalently attached onto NW…
On the basis of the fact of the overexpression of integrins in malignant tumor cells and neovasculature, and the advantage of polymeric micelles (PM) as the drug carriers, a cyclic RGD peptide (cRGDyK) was anchored on the surface of polyethylene glycol-b-poly(lactic-co-glycolic acid) (PEG-b-PLGA) micelles as a ligand…
Despite the fundamental importance of metal surface oxidation in a number of emerging fields such as catalysis, microelectronics, and biosensor technology, a comprehensive picture of the processes leading to the growth of thin oxide layers at low temperature is still lacking. In this work, we employ advanced first-pri…
We study the low-temperature regime of an atomic liquid on the hyperbolic plane by means of molecular dynamics simulation and we compare the results to a continuum theory of defects in a negatively curved hexagonal background. In agreement with the theory and previous results on positively curved (spherical) surfaces,…
We report on a universal technique which allows us to precisely manipulate the diameter of metal nanoparticles in two-dimensional particle arrays. The approach is demonstrated here for hexagonally ordered gold nanoparticle arrays fabricated by means of diblock copolymer micelle lithography (BCML). The particles are us…