Materials Literature
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Single-phase multiferroic Bi1−xNdxFeO3 (x=0–0.15) ceramics are polarized and their piezoelectric and pyroelectric effects are reported. The success in polarizing the ceramics originates from low electrical conductivities controlled predominantly by the Poole-Frenkel conduction mechanism. Limited internal traps due to…
Directed assembly of nanoscale building blocks such as single-walled carbon nanotubes (SWNTs) into desired architectures is a major hurdle for a broad range of basic research and technological applications (e.g., electronic devices and sensors). Here we demonstrate a parallel assembly process that allows one to simult…
Li-doped, p-type ZnO thin films have been realized via dc reactive magnetron sputtering. An optimized result with a resistivity of 16.4Ωcm, Hall mobility of 2.65cm2∕Vs, and hole concentration of 1.44×1017cm−3 was achieved, and electrically stable over a month. Hall-effect measurements supported by secondary ion mass s…
The application of ferroelectric materials for electronic devices necessitates the quantitative study of local switching behavior, including imprint, coercive bias, remanent and saturation responses, and work of switching. Here we introduce switching spectroscopy piezoresponse force microscopy as a tool for real-space…
In the paper, a solid oxide fuel cell (SOFC) system is briefly described and its economical feasibility in three different applications is analyzed. In the feasibility analysis, the SOFC system is part of commercial applications where energy is used for power and heat generation. In the economical analysis, the three…
We consider fluctuations of the electronic spin due to coupling to nuclear spin. Noise spectroscopy of an electronic spin can be revealed in the Scanning Tunnelling Microscope (STM). We argue that the noise spectroscopy of electronic spin can reveal the nuclear spin dynamics due to hyperfine coupling. Tunnelling curre…
Solution of dynamical problems of the theory of magnetoelasticity is connected with certain mathematical di culties as it is known from [1]–[4]. In the present work the analytical formulae for elastic displacements and stresses of the induced electromagnetic field for the Lamb magnetoelastic problem are obtained with…
'Structural Studies by X-Ray Diffraction' published in 'Organic Photochromic and Thermochromic Compounds'
It has been shown that several alternative routes to organic cyclic polymers are now well established. However, the synthesis of ring polymers with MW > 100 000 has not been completely successful. This synthesis is a challenge at the edge of present day controlled macromolecular engineering. At this level there is a l…
'Thermochromism of Organic Compounds' published in 'Organic Photochromic and Thermochromic Compounds'
Laser-ablated Cu, Ag, and Au atoms react with CO and O2 mixture in solid argon to produce carbonyl metal oxides, (O2)Cu(CO)(n) (n = 1, 2), (eta(1)-OO)MCO (M = Ag, Au), OCAuO2CO, and OAuCO, as well as group 11 metal carbonyls and oxides. These carbonyl metal oxides are characterized using infrared spectroscopy on the b…
Water and liquid carbon dioxide are mixed by power ultrasound to promote the Diels−Alder cycloaddition between cyclopentadiene and methyl vinyl ketone. Performing the reaction in emulsions of water and carbon dioxide leads to the high endo/exo selectivity and conversion that are characteristic of water but specific pr…
Structural and thermodynamic properties of crystalline monoclinic calcium apatites, Ca10(PO4)6(X)2 (X=OH, Cl), were investigated for the first time using a molecular dynamics (MD) technique under a wide range of temperature and pressure conditions. The accuracy of the model at room temperature and atmospheric pressure…
The first bulk n = 3 brownmillerite structure Ca 2 MnAlO 5.5 has been synthesized by high-pressure oxidation of the n = 1 brownmillerite phase, Ca 2 MnAlO 5, such that alternate AlO 4 tetrahedral layers are oxidized to AlO 6 octahedra. Rietveld analysis of room-temperature neutron powder diffraction (NPD) data shows a…
Using self-consistent-field and density-functional theories, we first investigate colloidal self-assembly of colloid-polymer films confined between two soft surfaces grafted by polymers. With increasing colloidal concentrations, the film undergoes a series of transitions from disordered liquid --> sparse square --> he…
We investigated CdTe nanocrystal tetrapods of different sizes by resonant inelastic light scattering at room temperature and under cryogenic conditions. We observe a strongly resonant behavior of the phonon scattering with the excitonic structure of the tetrapods. Under resonant conditions we detect a set of phonon mo…
Nicotinamide dinucleotide binding to transhydrogenase purified from Escherichia coli was investigated by attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy. Detergent-free transhydrogenase was deposited as a thin film on an ATR prism, and spectra were recorded during perfusion with buffers…
In this work we present for the first time an X-ray structure of a coordinated S-nitrosothiol obtained by reaction of the extremely reactive K[IrCl5NO] with benzylmercaptan in acetonitrile. This surprisingly stable compound, trans-K[IrCl4(CH3CN)N(O)SCH2Ph], was isolated in high yield (80%) and fully characterized by F…
Laser-induced fluorescence and dispersed fluorescence spectra measured in supersonic jets for 9,10,19,20-tetra-n-methylporphycene and 9,10,19,20-tetra-n-propylporphycene reveal, for both compounds, the presence of two different species which are assigned to trans and cis tautomeric forms. Doublet splitting of lines is…
The synthesis and characterization of a new family of ionic liquid crystal dendrimers consisting of the ammonium salts of the commercially available poly(propylene imine) ( G = 1−5) dendrimers and 4-decyloxy-, 3,4-didecyloxy-, and 3,4,5-tridecyloxybenzoic acids are reported. The liquid crystalline behavior was investi…