Materials Literature
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The magnetization and hole distribution of Mn clusters in (Ga,Mn)As are investigated by all-electron total energy calculations using the projector augmented wave method within the density-functional formalism. It is found that the energetically most favorable clusters consist of Mn atoms surrounding one center As atom…
We report the ultrafast and large third-order nonlinear optical properties of CdS nanocrystals (NCs) embedded in a polymeric film. The CdS NCs of 2-nm radius are synthesized by an ion exchange method and highly concentrated in the two layers near the surfaces of the polymeric film. The two-photon absorption coefficien…
Thermodynamic properties of a tetramer ferro-ferro-antiferro-antiferromagnetic Ising-Heisenberg bond alternating chain are investigated by the use of an exact mapping transformation technique. Exact results for the magnetization, susceptibility and specific heat in the zero as well as nonzero magnetic field are presen…
Epitaxial growth, as a best strategy to attain a heterostructure with a well-defined and clean interface, usually takes place on a planar substrate. In this paper, using a ZnO/SnO2 core-shell heterostructure as an example, we demonstrate the possibility of establishing a three-dimensional epitaxial interface between t…
The bactericidal action of silver (0) nanoparticles and amoxicillin on Escherichia coli is studied, respectively. Increasing concentration of both amoxicillin (0–0.525 mg ml −1 ) and silver nanoparticles (0–40 µg ml −1 ) showed a higher antibacterial effect in Luria–Bertani (LB) medium. Escherichia coli cells have dif…
Biomimetic Nanozymes Suppressed Ferroptosis to Ameliorate Doxorubicin-Induced Cardiotoxicity via Synergetic Effect of Antioxidant Stress and GPX4 Restoration,
The high performance of ceria (CeO2) as an oxygen buffer and active support for noble metals in catalysis relies on an efficient supply of lattice oxygen at reaction sites governed by oxygen vacancy formation. We used high-resolution scanning tunneling microscopy and density functional calculations to unravel the loca…
The dielectric permittivity of polycrystalline Li2SO4 was measured from 5 Hz to 13 MHz and over the temperature range 235-460 °C. The corrected imaginary part of permittivity, ϵ″, and its real part ϵ′ vs. frequency clearly show a new dielectric relaxation around fmax = 2 × 104 Hz at T = 256 °C, which shifts to higher…
Abstract Susceptibility of stainless steel to crevice corrosion in natural and synthetic seawater was investigated by a new test method, developed by a research group, CrevCorr, of the Marine Working Party of the European Federation of Corrosion. The method was defined on the basis of a Round Robin test performed by t…
Abstract The electric self‐heating and conduction behaviors of a high‐density polyethylene/carbon black composite at the electric–thermal equilibrium state are studied. An equation describing the current density/electric‐field strength ( J – E ) characteristic is derived on the basis of an equation proposed for the se…
This report deals with the synthesis and the spectroscopic properties of two second generation (G2) dendrons with site-specific incorporated phenyl pyrene derivatives as solvatochromic fluorescent probes. The generations that do not carry the probe are equipped with volume dummies, pyrene moieties that do not show a s…
A theoretical model is presented for charge transport in discotic liquid crystals in which a charge is delocalized over more than one lattice site. As such, charge transport is via a banded conduction process in a narrow bandwidth system and takes place over coherent lengths of a few molecules. The coherent lengths ar…
Solid-state NMR (SSNMR) and X-ray powder diffraction (XRPD) allow a study of a novel and stable polymorph of paclitaxel (Taxol) with two molecules per asymmetric unit ( Z ‘ ) in the P 2 1 2 1 2 1 space group. The asymmetric unit volume is 2167 Å 3, about four times larger than that previously characterized in combined…
This paper presents program pulse characterization in an 8-Mb BJT-selected phase-change memory test chip. Experimental results of the impact of the bit-line resistance over programming pulse efficiency are provided. Furthermore, in order to compensate for spreads in cell physical parameters in an array portion, a non-…
Abstract Pickling of duplex stainless steels has proved to be much more difficult than that of standard austenitic grades. Electrolytic pre‐pickling is shown to be a key process towards facilitating the pickling process for material annealed both in the production‐line and in laboratory experiments. The mechanism for…
The binding energy of dialane, Al2H6, has been measured using mass spectrometric techniques to be 33 +/- 5 kcal/mol. This represents the first measurement of the thermochemical properties of dialane, which has only recently been observed in low-temperature matricies. High-level quantum mechanical calculations give a b…
Seebeck coefficient S(T), electric resistivity ϱ(T) and thermal conductivity κ(T) measurements are reported on polycrystalline Bi0.88Sb0.12 samples grown by mechanical alloy (MA) by using different milling time. The electrical and thermal characterization was carried out in the temperature range between 77 K and 300 K…
For the first time, we successfully developed highly reliable 50nm-thick polycrystalline PZT capacitor using noble Ir/SrRuO/sub 3/ top electrode and MOCVD PZT technology. In the 50nm-thick PZT capacitor, 33/spl mu/C/cm/sup 2/ of remanent polarization and 0.7V of saturation voltage have been demonstrated. Moreover, aft…
In this paper, analysis of motional eddy currents in solid iron using magnetic equivalent circuits method is presented. The proposed method can accurately model the motional eddy currents by only using magnetic circuits and the scalar potential. A simple model of brake is used for simulation. Comparison of the simulat…
This report communicates the results of an international seminar which reviewed recent progress in the field of pellet-clad interaction in light water reactor fuels. It also draws a comprehensive picture of current understanding of relevant phenomena and their impact on the nuclear fuel rod, under the widest possible…