Materials Literature
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The compound BaFeO 3‐ x exists in many forms, the hexagonal phase having a wide range in oxygen content (BaFeO 2.63–2.92 ). The other phases have the limited compositions and the distinct structures of perovskite: triclinic I, BaFeO 2.50 ; triclinic II, BaFeO 2.64–2.67 ; rhombohedral I and II, BaFeO 2.62–2.64 ; and te…
BUSING, W. R. & LEVY, H. A. (1957). Acta Cryst. 10, 180. CROMER, D. Z. & LARSON, A. C. (1956). Acta Cryst. 9, 1015. CRUICKSHANK, D. W. J. (1961). In Computing Methods and the Phase Problem in X-ray Crystal Analysis. London: Pergamon Press. IBERS, J. A. (1956). Acta Cryst. 9, 225. IBERS, J. A. & CROMER, D. T. (1958). A…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCharacterization and Electronic Structures of Metal Complexes Containing Benzene-1,2-dithiolate and Related LigandsM. J. Baker-Hawkes, E. Billig, and Harry B. GrayCite this: J. Am. Chem. Soc. 1966, 88, 21, 4870–4875Publication Date (Print):November 1, 1966Publication History…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComplete Electron-Transfer Series of the [M-N4] TypeAlan L. Balch and R. H. HolmCite this: J. Am. Chem. Soc. 1966, 88, 22, 5201–5209Publication Date (Print):November 1, 1966Publication History Published online1 May 2002Published inissue 1 November 1966https://pubs.acs.org/do…
Double-quantum light scattering by a system of molecules is discussed in this paper. Expressions have been obtained for the scattered light intensity considering both the coherent and incoherent contributions. In that coherent contributions are also considered in this treatment, it goes beyond the scope of previous st…
LACTIC acid in its racemic or optically active form can undergo acid catalyzed homopolymerization to yield a polymer of lower molecular weight, which is not suitable for plastic or fibers.<sup>1</sup>However, the cyclic diester, the lactide<sup>2</sup>of lactic acid, can polymerize by anionic ring opening addition mec…
Theoretical equations are developed for typical decompositions of polymers including those in which the volatilization does not follow a simple "reaction order" and those made up of a composite of several reactions of differing energies of activation. The effects of order, activation energy, heating rate and temperatu…
Abstract The behaviour of a number of corrosion-resistant alloys in chloride solutions, in Hanks’s physiological solution (simulating the extracellular body fluids) and as surgical implants has been investigated by electrochemical means, namely potential-time curves for isolated specimens, potential-current density cu…
Pyridine and pyridine-d5 were irradiated with electrons in the solid state at −196°C. After the irradiation, ESR spectra were measured over a temperature range from −196°C to their melting points. For pyridine, a triplet spectrum (separation of 30 G) with a quartet substructure (separation of 4.3 G) was observed at −1…
Sc2(WO4)3, diamagnetic above 30°K, crystallizes in the orthorhombic system, Space Group Pnca, with lattice constants a=9.596±0.004, b=13.330±0.003, and c=9.512±0.004 Å at 298°K. The complete x-ray scattering pattern within a reciprocal lattice hemisphere of radius (sinθ)/λ=1.02 Å−1 was measured with PEXRAD. The crysta…
The thicknesses of oxide films formed in aqueous borate solutions were obtained by the spectrophotometric method after developing the interference colors by evaporating a very thin film of gold or bismuth onto the oxide. The refractive index of the stripped films was determined by the Becke immersion method as 1.57 to…
The torsional creep and creep recovery behavior of amorphous 1,3,5-tri-α-naphthyl benzene was studied, while at metastable equilibrium density, along a specified glassy volume—temperature line, and during isothermal volume contraction below the conventional glass transition temperature Tg. Dilatometric measurements co…
Below the Verwey transition the ${\mathrm{Fe}}^{2+}$ and ${\mathrm{Fe}}^{3+}$ ions on B sites in magnetite are magnetically coupled to $A$-site ions by different exchange constants. We calculate the six-sublattice spin-wave spectrum of this ordered orthorhombic structure, for arbitrary spin quantum numbers and for arb…
The optical constants for electropolished intrinsic germanium have been determined for the spectral region between 0.5 and 3.0 eV at 300 and 120\ifmmode^\circ\else\textdegree\fi{}K. The technique is based on the determination of the ratio ${\mathcal{R}}_{n}=\frac{{R}_{\mathrm{II}}}{{R}_{\ensuremath{\perp}}}$ at its mi…
Optical absorption in CdTe single crystals is reported for photon energies just below the transmission limit at about 1.5 eV at several temperatures between 2 and 300\ifmmode^\circ\else\textdegree\fi{}K. Chemical removal of damaged surface layers was required to obtain concordant results from mechanically polished sam…
The production of an isolated displacement spike by a collision cascade in $\ensuremath{\alpha}$-iron, tungsten, and copper at 0\ifmmode^\circ\else\textdegree\fi{}K and the annealing of displacement spikes in $\ensuremath{\alpha}$-iron at temperatures up to 250\ifmmode^\circ\else\textdegree\fi{}C were studied using th…
A new method of spectroscopy of solids is presented. By means of it, information concerning the state densities in solids is extracted from measured kinetic-energy distributions of electrons ejected from the solid by slow noble-gas ions. The basic electronic process involved is the radiationless, two-electron, Augerty…
Abstract A theoretical model of the energy changes accompanying grain boundary movement has been developed. It has been shown that small boundary movements will reduce the energy of a polycrystalline metal only when there is a heterogeneous grain size. The pinning force exerted by precipitate particles of a second pha…
Experimental measurements of the phonon dispersion relation for SnTe suggest that the phase transition of GeTe and SnTe/GeTe alloys is of a displacive character, similar to that of the perovskite ferroelectrics. They therefore provide the first examples both of diatomic ferroelectrics and of "ferroelectric semiconduct…
Article Einfluß der Adsorption von Sauerstoff und Wasserdampf auf die elektrische Leitfähigkeit dünner Eisenschichten was published on October 1, 1966 in the journal Zeitschrift für Physikalische Chemie (volume 233O, issue 1).