Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOrder-related properties of some nematic liquidsI. Haller, H. A. Huggins, H. R. Lilienthal, and T. R. McGuireCite this: J. Phys. Chem. 1973, 77, 7, 950–954Publication Date (Print):March 1, 1973Publication History Published online1 May 2002Published inissue 1 March 1973https:…
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This paper presents methods for incorporating crystallographic symmetry properties into complex Fourier transforms in a form particularly well suited for use with the Cooley-Tukey fast Fourier transform algorithm. The crystallographic transforms are expressed in terms of a small number of one-dimensional special cases…
D V Morgan and M J Howes London: Wykeham Publications 1972 pp xii + 190 price £2·25 This book aims to give a qualitative understanding of the basic principles of operation of the most important solid state devices. It is written for first year undergraduate students and has the great merit of being readable and of hav…
Abstract In magnetic fields up to 50 kOe and for photon energies greater than the band gaps for light polarized with E ⊥ c and E ‖ c oscillatory changes of reflectivity are observed on ZnO‐crystals at helium temperatures. The anisotropic reduced masses and hole masses and the energy gaps are deduced from the shift of…
Abstract Azo compounds are characterized by a low‐energy 1 (n,π * ) electronic state, which gives rise to a weak band at long wavelengths in the absorption spectrum. Coupling of this state with other low‐lying molecular states is responsible for the high intensity of the “azo band” compared to other forbidden transiti…
The addition of ${\mathrm{Ti}}^{3+}$ and ${\mathrm{Mg}}^{2+}$ to ${\mathrm{V}}_{2}$${\mathrm{O}}_{3}$ leads to the suppression of the antiferromagnetic insulating phase; whereas the addition of ${\mathrm{Ti}}^{4+}$, ${\mathrm{Zr}}^{4+}$, and ${\mathrm{Fe}}^{3+}$ results in a first-order transition from a metallic to a…
Extinction coefficients k(lambda) for water at 25 degrees C were determined through a broad spectral region by manually smoothing a point by point graph of k(lambda) vs wavelength lambda that was plotted for data obtained from a review of the scientific literature on the optical constants of water. Absorption bands re…
Recent re-evaluation of diffraction data from cubic spinel compounds has suggested that in many cases the crystal structure is properly referred to the noncentrosymmetrical space group F43m. This symmetry provides the possibility of antiferroelectric behaviour which may resolve previous theoretical difficulties concer…