Materials Literature
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The molecular-beam epitaxy technique is used to synthesize arrays of (Ga,Mn)As nanowire crystals on a GaAs (111)B surface in the growth-temperature range 480–680°C. It is established that the formation of (Ga,Mn)As nanowires can be described in the context of a vapor-liquid-crystal mechanism. It is shown that the grow…
First-principles calculations have been performed to investigate the electronic and magnetic properties of BC3 honeycomb structure (2D BC3) substitutionally doped with Fe, Co, and Ni. 2D BC3 is a semiconductor with a mediate bandgap. When substituting for B, the Fe, Co, and Ni impurity atoms exhibit distinct electroni…
The viscoelastic behavior of ethylene-propylene-diene (EPDM) reinforced with zinc dimethacrylate (ZDMA) was studied with the use of a rubber process analyzer. ZDMA was in situ prepared in the EPDM matrix through the neutralization reaction of zinc oxide (ZnO) and methacrylic acid (MAA). Strain sweep and frequency swee…
We report the structural and magnetic properties of the La(1-x)Tb(x)Mn(1/2)Sc(1/2)O(3) series. LaMn(1/2)Sc(1/2)O(3) shows a long range ferromagnetic ordering in agreement with a fully polarized Mn-sublattice. The substitution of La with Tb produces structural changes which affect the magnetic properties. This substitu…
A modified analytic embedded atom method (MAEAM) potential is constructed for fcc δ-Pu. Molecular dynamics (MD) simulations with the potential are performed to investigate the interactions between two symmetrical tilt grain boundaries (GBs) and point defects such as He atom, vacancy and self-interstitial atom (SIA) in…
This paper presents a summary of scientific results obtained during the last few years in the National Research Centre “Kurchatov Institute” (NRC KI). The main aims of this research are the development of a new experimental method that can be applied for the investigation of the influence of a high level of radiation…
The effect of the preparation technique (chemical composition of a polymer, type and method of emulsion mixing, and molecular mass of a drug) on the yield, structure, and size of microparticles obtained from resorbable polyesters of microbiological origin, polyhydroxyalkanoates, is studied. It is found that the concen…
We have studied the spectral and kinetic characteristics of activated photo- and cathodoluminescence of LiF-O and LiF-WO 3 crystals in the spectral range of 3.6–1.6 eV using methods of pulsed spectrometry with nanosecond time resolution in the temperature range of 15–300 K and in the range of ionizing radiation dose a…
A magnetoelectric laminate composite was proposed by combing a piezoelectric transformer and a Terfenol-D plate. Converse magnetoelectric effect was researched by using an induction method with frequency, bias magnetic field, ac voltage, and Terfenol-D thickness. A giant converse magnetoelectric coefficient of 35.7 G/…
The effect of the modification of aluminum oxide with silicon oxide on the stability of fine-particle Γ- and δ-Al 2 O 3 phases upon heat treatment in the wide temperature range of 550–1500°C was studied. It was found that the Γ- and δ-Al 2 O 3 phases modified with silica are thermally stable up to higher temperatures…
p-nitrophenylazoaniline (1) belongs to the family of compounds with conjugated bonds and delocalized π-electrons, structurally similar to the well known push-pull compound Disperse Red 1 (DR1). 1 Due to the assembly of the molecule, nonlinear optical (NLO) properties are expectable and can be more or less accurately p…
A good understanding of thermal spreading resistance is crucial for thermal management in power electronics. In this paper, an analytical solution is developed for the determination of thermal spreading resistance with a heat source placed on a three-layer substrate, wherein the same footprint is assumed for different…
The fabrication of diamond substrates in which single-crystalline and polycrystalline CVD diamond form a single wafer, and the epitaxial growth of diamond films on such combined substrates containing polycrystalline and (100) single-crystalline CVD diamond regions are studied.
A new SnO 2 (ZnO:Sn) m polytypoid nanowire has been synthesized through a two-step chemical vapor deposition (CVD) method. Cs-corrected scanning transmission electron microscopy (STEM) studies indicate the crystal structure consists of an alternating stack of a Sn–O octahedral layer and a (Sn/Zn)–O wurtzite slab. Firs…
Abstract Novel NCN-pincer Pd-complex-bound norvaline derivatives were synthesized. The N- and C-termini-alkylated Pd–norvalines spontaneously assemble into fibrous aggregates to form supramolecular gels, in which the NCN-pincer Pd complex moieties assemble in a highly oriented manner.
Linearly conjugated benzene rings (acenes), belt-shaped molecules (cyclic acenes), and models of single-walled carbon nanotubes (SWCNTs) with one carboxylic group at the open end were fully optimized at the B3LYP/6-31G* level of theory. These models were selected to obtain some insight into the nuclear isotropic chang…
Abolfazl Akbarzadeh1, Haleh Mikaeili2, Nosratollah Zarghami3, Rahmati Mohammad3, Amin Barkhordari3, Soodabeh Davaran21Drug Applied Research Center, 2Tuberculosis and Lung Disease Research Center of Tabriz, 3Department of Clinical Biochemistry and Laboratory Medicine, Division of Medical Biotechnology, Faculty of Medic…
The continuous growth of nanotechnology has brought challenging innovations in medicine, revolutionising the eld of diagnosis and therapy. Indeed, in the eld of the synthesis and functionalisation of inorganic nanoparticles (NPs) for biomedical applications, most researches aim at developing multifunctional theranos…
DNA-templated fluorescent silver nanoclusters (Ag NCs) composed of several or tens of atoms are gaining much interest because of their unique properties and convenient emission tunability by DNA sequence and length. However, the modulation by other factors other than DNA is also dependent on the special DNA secondary…
Tarbagataite, (K,□) 2 (Ca,Na)(Fe 2+ ,Mn) 7 Ti 2 (Si 4 O 12 ) 2 O 2 (OH) 4 (OH,F), is a new Ca- and Fe 2+ -dominant astrophyllite-group mineral discovered in a pegmatite in the Verkhnee Espe deposit, Akjailyautas Mountains, Kazakhstan. Tarbagataite occurs as intimate intergrowths of tarbagataite and astrophyllite flake…