Materials Literature
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We present the results of an experimental and theoretical study of surface channelling and energy loss of 4 keV hydrogen and fluorine ions in grazing scattering on a missing row reconstructed Au(110) surface and a Au(111) surface. We performed measurements of energy losses for grazing angle scattering in surface chann…
The title compound, tripotassium gadolinium(III) bis-[ortho-phosphate(V)], was synthesized by a high-temperature solution reaction. Of the 12 atoms of the asymmetric unit (1 × Gd, 2 × P, 3 × K, 6 × O), all but two O atoms (which are in general positions) lie on mirror planes. The crystal structure features sheets of c…
Water confined on the nanometer scale exhibits unusual behavior that cannot be observed in the bulk. The freezing/melting temperature T m of liquids is one of the most prominent phenomena that strongly depend on geometrical confinement. In this work, we report the phase behaviors of water in a cylindrical pore of sing…
This article presents observations of three polymerization modes of a self-developed cation-charge-stabilized styrene/water/methanol dispersion polymerization system: (1) a water/methanol (20/80) system, corresponding to a typical dispersion polymerization mode where the particle nucleation occurred in the solution ph…
The shock-induced bcc (body-centered cubic) to hcp (hexagonal-closed packing) transition in iron containing a nanovoid was investigated by molecular dynamics simulations with a shock-front absorbing boundary condition. The results demonstrate the transition time induced by a nanovoid reduces exponentially with increas…
Oranges were sanitized, dried, peeled and segmented. Undamaged segments were packed under passive and active MAP with low and high oxygen in PP trays sealed with CPP/OPP film. Overall quality of the segments were monitored for 25 days at 4°C. The results showed that orange segments could be stored under passive and ac…
Using novel stacked covalent-bond-dielectric GeOx(GeO) on metal-oxide SrTiO3to form a cost-effective Ni/GeO/SrTiO/TaN resistive switching memory, an ultralow set power of small 4 μW (3.5 μA at 1.1 V), a reset power of 16 pW (0.12 nA at 0.13 V), and a large 106memory window for 105-s retention at 85°C are realized for…
The reactivity of the ruby silver minerals proustite (3Ag(2)S⋅As(2)S(3)) and pyrargyrite (3Ag(2)S⋅Sb(2)S(3)) was studied with two types of electrodes: a carbon-paste electroactive electrode (CPEE) and a paraffin-impregnated graphite electrode (PIGE). Polycrystalline samples of α-Ag(2)S (acanthite), As(2)S(3) (orpiment…
In surface science, CO is a suitable probe to test the properties of metals in different chemical environments. We have analyzed CO adsorption on different PdAu alloys at both low and medium Pd content through a theoretical approach. CO is adsorbed on several sites, and the ensemble rules both the CO stretching freque…
In this work, a forcing strategy based on a cyclic flow reversal of a dyeing process of bobbin threads is investigated through numerical simulation. Convection, dispersion, and adsorption of dye on the threads are modeled considering that the system is operated by a cyclic reversal of the flow direction through the bo…
The capacity to store energy in ultracapacitors or double-layer capacitors is about two orders of magnitude greater than that of ordinary capacitors. Also, their capability to receive and transfer power is greater than that of batteries in the same order of magnitude. These characteristics, together with their long li…
No presente trabalho verificou-se o efeito de perturbação antrópica na incidência de minhocas exóticas e nativas ativas na superfície do solo de uma área de Floresta Atlântica do Estado de São Paulo, Brasil. Os oligoquetos foram amostrados usando armadilhas de queda (pitfall) em duas áreas, uma onde houve corte raso e…
In the title compound, C(4)H(8)N(2)O(3)·C(4)H(6)O(6), the amino acid mol-ecule exists as a zwitterion and the carb-oxy-lic acid in an un-ionized state. The tartaric acid mol-ecules are linked into layers parallel to the ab plane by O-H⋯O hydrogen bonds. The amino acid mol-ecules are also linked into layers parallel to…
The goal of this letter is to investigate and characterize the defects at the Al2O3/gate interface in TANOS memory stacks. To this purpose, gate-side trap spectroscopy by charge injection and sensing is applied on devices featuring different metal gates and different postdeposition anneals. The results show that a hig…
This paper presents a characterization of the vibrational modes of nanostructure–DNA complexes immobilized on substrates, such as silver-coated microspheres and silver nanostructure array DNA strands end terminated with titanium dioxide (${\rm TiO}_{2}$) nanoparticles are used to study UV-induced cleaving of DNA molec…
Our ab initio study explains recent puzzling experiments on the conductance of a single Co adatom deposited either on Cu(111) or on ferromagnetic Co islands and contacted with both magnetic and nonmagnetic electrodes [N. N\'eel, J. Kr\"oger, and R. Berndt, Phys. Rev. Lett. 102, 086805 (2009)]. We provide clear evidenc…
This paper presents a method of impedance spectroscopy designed for diagnostics of anticorrosion coatings on objects directly in the field. To shorten the time of impedance spectrum estimation (in the range from 1 mHz to 1 MHz) to a few minutes, harmonic signals were used to determine the spectrum above 10 Hz and a sq…
The structural behaviour of CuInSe(2) under high pressure has been studied up to 53 GPa using angle-dispersive x-ray powder diffraction techniques. The previously reported structural phase transition from its ambient pressure tetragonal structure to a high pressure phase with a NaCl-like cubic structure at 7.6 GPa has…
We measured the electrical resistivity under pressure and magnetic field for a heavy fermion compound YbIr 2 Zn 20 with a cubic cage structure. Metamagnetic transition, which is characteristic in the heavy fermion compounds, occurs at the magnetic field H m = 97 kOe for H ∥<100> at ambient pressure, shifts to lower ma…
Two types of low-temperature Au–Si wafer bonding structure (i.e. Au/Si and Au/Au bonding structures) were investigated in this paper. The bond quality test showed that bond yield, bond repeatability and average shear strength are lower for the Au/Si bonding structure. The interfacial microstructure analysis of the Au/…