Showing papers in "Journal of Physics and Chemistry of Solids in 1960"

TL;DR: In this paper, the Zener current in a constant field is calculated both with and without the W annier -A dams reduction of the interband-coupling terms, interpreted as a polarization correction.

TL;DR: In this paper, the absorption and reflection spectra of ZnO crystals have been observed in the near ultraviolet at temperatures between 300° and 4.2°K, and the Kramers-Kronig relation has been used to analyze the reflectance data.

TL;DR: In this article, a quasi-cubic model of the valence band structure for hexagonal ZnO, CdS and ZnS is developed, in conjunction with the group theory of weakly bound excitons.

TL;DR: In this article, a quantum-mechanical extension of Mason and Devonshire's long-range forces model was proposed to explain the isotopic effects in the ferroelectric properties of hydrogen-bonded crystals.

TL;DR: In this paper, a theory based on the effective mass approximation for hole-electron pairs in a semiconductor in a magnetic field is given, where the intensity of the absorption edge is determined by the wave function of relative motion of the pair.

TL;DR: In this paper, the elastic constants C 44, 1 2 (C 11 −C 12 ) and 1 2(C 11 +C 12 +2C 44 ) have been measured in nickel and an Fe-30% Ni alloy through their respective Curie temperatures at high enough applied magnetic fields to eliminate the ordinary Δ E effect associated with domain wall motion.

TL;DR: In this paper, a simplified theory of the optical absorption and recombination radiation spectra due to direct transitions between hydrogen-like acceptor levels and the conduction band in a semiconductor with simple bands is given.

TL;DR: In this paper, it was shown that a magnetic ion actively participates in ferrimagnetism only if it interacts with two or more magnetic ions in different coordination and that the Curie temperature is determined by the number of complete interactions per active magnetic ion per formula unit.

TL;DR: In this paper, the lattice constants a0 and c0 for the Bi2Te3-Bi2Se3 quasi-binary system were determined using powder pattern film techniques.

TL;DR: The shielding of a small fixed charge in a high-density electron gas is calculated by means of a technique similar to that used by Gell-Mann and Brueckner for calculating the correlation energy as discussed by the authors.

TL;DR: In this article, the reaction of oxidized lithium with ZnO was investigated by means of conductivity measurements and some results were reported for the kinetics and equilibria of the displacement reaction.

TL;DR: Some photoelectric properties of single crystals of ternary compounds of the type V-VI-VII (V = Sb, Bi; VI = S, Se, Te; VII = C1, Br, I) were studied in this paper.

TL;DR: In this paper, the slip plane in crystals of the spinel type is assumed to be the (111) plane in analogy with the basal slip of corundum, which may be explained as a mechanism involving partial dislocations with a ( 111) slip plane.

TL;DR: Capacitance measurements made on single crystal zinc oxide electrodes in contact with aqueous electrolytes are reported in this paper, and the results are in almost quantitative accord with predictions of the simple Poisson-Boltzmann (Poisson-Fermi in the degenerate case) equation.

TL;DR: In this paper, a detailed account is given of the calculation of the energy levels, starting from the ionization energies of the free ions and combining them with Madelung potentials.

TL;DR: In this article, powder diffraction patterns were obtained to establish whether or not the various alloys existed in the form of intermetallic compounds, and it was shown that the compound formation tendency was exhibited by all the lanthanons except La.

TL;DR: In this paper, a surface reaction resulting in film growth occurs on silicon immersed in 10−1−10−3 molar solutions of nitric acid, sodium nitrite or nitrogen dioxide in hydrofluoric acid The films also form as the result of a standard etching procedure.

TL;DR: In this paper, alloys have been produced for the three systems CdTe-HgTe, CcTe-ZnTe, and HgTe-NTe and annealed to obtain equilibrium conditions.

TL;DR: In this article, the infra-red vibration absorption of a point imperfection in alkali halides, the U -center, has been measured and the frequency ν corresponding to the absorption maximum depends upon the lattice spacing and is given by the equation hνd 2 = const.

TL;DR: In this paper, the variation of mobility with electric field has been measured for n- and p-type silicon and germanium with fields up to 105 V cm, and the variation was found to depend on hole concentration.

TL;DR: In this article, an anomalous behavior of the Hall-coefficient with temperature similar to what was found recently in SnS crystals was reported, where the free carrier absorption part of the transmission curve showed a dependence of α ≈ λ2.

TL;DR: In this article, a study of the mechanisms which are important in the growth of SiO2 films on high purity silicon surfaces was performed using infrared absorption measurements and the results showed that in both the steam and oxygen cases considerable oxygen isotopic exchange has taken place which indicates that mobile oxygen species diffuse into the film from the silica-gas interface.

TL;DR: In this paper, the energy levels of the donor-acceptor pair were investigated theoretically in the effective mass approximation in a way similar to the Heitler-London treatment of the hydrogen molecule.

TL;DR: In this paper, thermal expansion, specific heat and thermal conductivity have been determined from 1000°C to near the destruction temperature of molybdenum (m.p. 2620°C), tantalum and four types of graphite (sublimes at 3650°C).

TL;DR: In this paper, the diffusion of zinc into gallium arsenide from the vapour phase has been investigated for a range of diffusion temperatures and zinc pressures, and the results obtained depart radically from those expected for a constant diffusion coefficient and possible reasons for this are discussed.

TL;DR: In this article, it was shown that the temperature at which ice crystals first appear on a particular substance is very close to the threshold temperatures at which an aerosol of the same substance nucleates a cloud of supercooled water droplets.

TL;DR: The optical properties of LiH differ from those expected by a comparison with the properties of the alkali halides or the other alkali hydrides as discussed by the authors, due to distortion and polarization effects on the hydride ion in the LiH crystal lattice.