Materials Literature
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We previously observed that an intrinsic staking fault shrunk through a glide of a Shockley partial dislocation terminating its lower end in a hard-sphere crystal under gravity coherently grown in ⟨001⟩ by Monte Carlo simulations [Mori et al., Molec. Phys. 105, 1377 (2007)]; it was an answer to a one-decade long stand…
Most materials in available macroscopic quantities are polycrystalline. Graphene, a recently discovered two-dimensional form of carbon with strong potential for replacing silicon in future electronics, is no exception. There is growing evidence of the polycrystalline nature of graphene samples obtained using various t…
The frequency and temperature dependence of the dielectric constant, electric modulus and electrical conductivity of the transparent glasses in the composition 0.5Li2O-0.5Na2O-2B2O3 (LNBO) were investigated in the 100 Hz - 10 MHz frequency range. The dielectric data have been analyzed using Cole-Cole equation with an…
X-ray powder diffraction (XRD) along with differential thermal analysis (DTA) carried out on the as-quenched samples in the 3BaO-3TiO2-B2O3 system confirmed their amorphous and glassy nature, respectively. The dielectric constants in the 1 kHz-1 MHz frequency range were measured as a function of temperature (323-748 K…
Polarized Raman scattering studies and lattice-dynamics calculations were performed at ambient pressure and temperature. These results allowed us to propose the normal-mode symmetries and assignments. High-pressure Raman scattering studies were further performed revealing the onset of two reversible phase transformati…
Novel electroactive and biodegradable graft copolymers with aniline tetramer side chains were synthesized by conversing the side carboxyl groups of poly(L-glutamic acid) to active N-oxysuccinimide ester, which can be easily substituted by amino compounds. The main chain of grafting copolymer, poly(L-glutamic acid) was…
Experimental observations and some theoretical models for the propagation of ferroelastic domain boundaries and phase fronts are reviewed. While the static configurations of domains and domain walls are reasonably well understood in ferroelastics (and specifically in shape memory alloys), one finds that the dynamic fe…
The magnetic properties of the orthorhombic intermetallic compounds R(2)Al (R = Dy, Ho, Er) are reported. Dy(2)Al undergoes a long-range canted antiferromagnetic-type ordering below T(1) = 105 K, and a further spin reorientation-type ordering below T(2) = 33 K. The low temperature magnetic state of the sample is found…
The sinusoidal modulation of excitation intensity and phase-sensitive detection of emission is ideally suitable for the accurate determination of the lifetime and intensity of lanthanide luminescence. In this work we elaborate on the general mathematical and instrumental techniques of the frequency-domain (FD) measure…
A three-dimensional finite element method is developed to predict the critical conditions necessary to nucleate electromigration or stress induced voids in interconnects. Our approach is to model interfaces using a modified cohesive zone, which permits the interfaces to separate at a critical stress, and also accounts…
Abstract In this study, a series of ultraviolet (UV)‐curable organic–inorganic hybrid coating materials containing phosphorus were prepared by sol–gel approach from acrylate end‐capped urethane resin, acrylated phenyl phosphine oxide oligomer (APPO), and inorganic precursors. TEOS and MAPTMS were used to obtain the si…
We have investigated the structures, stabilities, aromaticities, and Wiberg bond indices of four types of compounds (8-like, trapezia, umbrella-like, and quadrangle) containing planar tetracoordinate carbon (ptC), and the stability rules for the compound with ptC were concluded on the basis of extensive calculations.…
Membranes at a microscopic scale are affected by thermal fluctuations and self-adhesion due to van der Waals forces. Methods to prepare membranes of even molecular scale, e.g., graphene, have recently been developed, and the question of their mechanical and thermal stability is of crucial importance. To this end we mo…
Gold? Ja! – Aber in welcher Form? Die im Titel bezeichneten Katalysatoren wurden nach einem Kolloidabscheidungsverfahren erhalten. Rastertransmissionselektronenmikroskopie-Untersuchungen belegen, dass das Vorliegen von Doppelschichten aus etwa 0.5 nm großen Goldclustern nicht zwingend für eine hohe katalytische Aktivi…
Crystal structures of ( R )-(+)-1,1′-bi-2-naphthol (BINOL), ( R, S )-(±)-BINOL, ( S )-(−)-BINOL, ( R, S )-(±)-BINOL·DMSO, ( R )-(+)-BINOL·2DMSO, ( R, S )-(±)-BINOL·2DMSO, and ( S )-(−)-BINOL·2DMSO (DMSO = dimethyl sulfoxide) were determined and related to their photoluminescence measurements systematically. The intens…
Purpose Little is known about the ecotoxicity of nanomaterials and there are no specific guidelines for sample preparation and testing. We set out to establish whether the method used to prepare TiO 2 dispersions had a significant impact on aquatic ecotoxicity. We also followed the formation of agglomerates during the…
To clarify the mechanism of the observed room-temperature ferromagnetism (RTF), many studies have been focused on dilute magnetic semiconductor systems. Several investigations have demonstrated that oxygen vacancies play a significant role in mediating the RTF behavior so that much effort has been devoted to confirm t…
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” opt…
Abstract Block copolymers having a pendant trichlorogermyl group as a part of polyamide segment(COR′CONHArNH) x COR′COand polydimethylsiloxane of general formula [(COR′COHNArNH) x COR′CONH(CH 2 ) 3 SiO(CH 3 ) 2 ((CH 3 ) 2 SiO) y Si(CH 3 ) 2 (CH 2 ) 3 NH] n (where R′ = CH 2 CH(GeCl 3 ), CH(CH 3 )CH…
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