Materials Literature
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Ga0.6Fe1.4O3 is predicted to be magnetoelectric with non zero magnetization at room temperature. However, in thin films, electric properties are overshadowed by strong leakage currents. In this Letter, we show that Mg doping in Ga0.6Fe1.4O3 thin films grown by pulsed laser deposition allows decreasing the leakage curr…
(0.85− x )Pb(Mg 1/3 Nb 2/3 )O 3 –0.10Pb(Fe 1/2 Nb 1/2 )O 3 –0.05PbZrO 3 – x PbTiO 3 [(0.85− x ) PMN –0.10 PFN –0.05 PZ – x PT ] polycrystalline ceramics with morphotropic phase boundary ( MPB ) compositions were prepared using the modified columbite precursor method. The phase transitional behaviors, composition‐depen…
The relationship between molecular gel-forming compound-based double-alkylated L-glutamide-derived functional group-integrated organic phase (Sil-FIP) structure and chromatographic performance is investigated and compared with widely used alkyl phases (C(30), polymeric and monomeric C(18)) as references. The functiona…
Dihydrodipicolinate synthase (DHDPS) catalyzes the rate limiting step in lysine biosynthesis in bacteria and plants. The structure of DHDPS has been determined from several bacterial species and shown in most cases to form a homotetramer or dimer of dimers. However, only one plant DHDPS structure has been determined t…
Thaumasite, Ca 3 Si(OH) 6 (CO 3 )(SO 4 )⋅12H 2 O, is recognized as a secondary-alteration mineral and indicator of sulfate attack in Portland cement in contact with sulfate-rich groundwater, especially in cold regions. The hydrogen positions in thaumasite have been determined from single-crystal neutron diffraction st…
Nanoparticles (NPs) become specifically or nonspecifically coated with biomolecules upon contact with biological fluids. The nature of this coating determines the final biological identity of the NP. Therefore, predictive information about the interactions between biomolecules and NPs in solution is essential for mate…
This paper reports an approach using nanoparticle free polymer blends for light scattering films in liquid crystal displays. The ability to create the regularly structured circle of approximately 200 nm diameter in the light scattering film by blending two specified polymers with carboxylic acid groups and epoxy group…
The stress dependence of thermally driven polarization change is reported for a ferroelectric rhombohedral to ferroelectric orthorhombic phase transformation in [011] cut and poled Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 (PIN-PMN-PT). A jump in polarization and strain is associated with a phase transformation of the…
Two monosubstituted and one tetrasubstituted N-confused porphyrins (1-3) were prepared in ca. 3-5% yields using a [2 + 2] synthesis. The monosubstituted porphyrins have carbomethoxy (1) or nitro (2) substituents on one of the meso-phenyl groups, while the meso-phenyl groups of the third NCP (3) are substituted with ni…
Abstract With a view of exploring the potential use of natural recourses, we made an attempt to fabricate new Borassus fruit fiber/polypropylene composites by melt mixing method using 5 wt % of fiber. Fibers were chemically modified by alkali treatment using maleated PP (MAPP) as compatibilizer to improve the adhesion…
Lead-doped zircon crystals, which were synthesized under three different conditions (Watson et al. 1997): dry at 1430 °C at atmospheric pressure without P 2 O 5 ; wet at 900 °C at 1.5 GPa in the presence of P 2 O 5 ; and wet at 800 °C at 1.0 GPa without P 2 O 5 , have been investigated to understand the mechanisms of…
Abstract Reaction of the siloxane‐diols HO(Ph2SiO)2H, 1,1,3,3‐tetraphenyldisiloxane‐1,3‐diol (L1H2), HO(iPr2SiO)2H, 1,1,3,3‐tetraisopropyldisiloxane‐1,3‐diol (L2H2), and HO(Ph2SiO)3H, 1,1,3,3,5,5‐hexaphenyltrisiloxane‐1,5‐diol (L3H2) with two equivalents of CunMesn led to octanuclear compounds [Cu8L14] (1), [Cu8L24] (…
Volatile Eu complexes, namely Eu(TTA)3Phen, Eu(x)Y(1-x)(TTA)3Phen; Eu(x)Tb(1-x)(TTA)3Phen; Eu, europium; Y, yttrium; Tb, Terbium; TTA, thenoyltrifluoroacetone; and Phen, 1,10 phenanthroline were synthesized by maintaining stichiometric ratio. Various characterization techniques such as X-ray diffraction (XRD), photolu…
We have employed hard x-ray photoemission (HAXPES) to study a delta-doped SrTiO 3 layer that consisted of a 3-nm thickness of La-doped SrTiO 3 with 6% La embedded in a SrTiO 3 film. Results are compared to a thick, uniformily doped La:SrTiO 3 layer. We find no indication of a band offset for the delta-doped layer, but…
Abstract A two‐component waterborne polyurethane (2K‐WPU) is prepared with the terpene‐maleic ester type epoxy resin‐based polyol dispersion and a hydrophilically modified hexamethylene diisocyanate tripolymer. Laser particle size analyzer and transmission electron microscopy are used to characterize the particle size…
In this paper, ZnO-Epoxy nanocomposites (NEP) were prepared and epoxy composites that contain 5 wt% micro ZnO (MEP) and deliberately not well dispersed nano ZnO (NDNEP) were also prepared for purpose of comparison. The effects of the particle size and dispersion of ZnO on dielectric properties of epoxy resin were chie…
Reflective polarizers can be used as luminance enhancement films for LCD backlights via the polarization recycling process. The optical performances of a wire grid polarizer (WGP) as a reflective polarizer adopted in edge-lit backlights were investigated by luminance evaluation and a time-domain simulation technique.…
The electronic properties of twisted bilayer graphene on SiC substrate were studied via a combination of transport measurements and scanning tunneling microscopy. We report the observation of enhanced intervalley scattering from one Dirac cone to the other, which contributes to weak localization of the twisted bilayer…
Single Fe adatoms and clusters of Fe adatoms on graphene are studied through first-principles calculations using density functional theory (DFT) and spin density functional theory (sDFT). First, we consider computational cells containing various numbers of C atoms and one Fe adatom. We calculate the binding energy, ad…
Graphene grown by chemical vapor deposition on 4H-SiC (0001) was studied using micro-Raman spectroscopy and atomic force microscopy (AFM). AFM revealed that the graphene structure grown on on-axis substrates has a stepped morphology. This is due to step bunching, which results from etching in hydrogen as well as from…