The electric field in crystals III. The refractivity of $\alpha$-quartz
- 1 August 1968
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 1 (4), 889-894
- https://doi.org/10.1088/0022-3719/1/4/308
Abstract
A calculation has been performed by using dipolar lattice sums in α-quartz to interpret the refractivities in terms of the point polarizabilities of silicon and oxygen. The details of the calculations are similar to those in the first two papers of this series which dealt with the TiO2 structures. If quartz is taken to consist of an isotropic Si4+ ion and an O2- ion, then the results of the present calculations show that the oxygen ion can be considered to have an axial polarizability tensor with α0parallel = 1.43 Å3, α0perpendicular = 1.32 Å3. On the other hand, the analysis does allow an interpretation in terms of neutral oxygen and silicon and it is concluded that further work is needed before the state of the atomic components in the quartz lattice is finally decided.Keywords
This publication has 18 references indexed in Scilit:
- Some aspects of the lattice dynamics of quartzProceedings of the Physical Society, 1967
- X -ray scattering and covalent bonding in germaniumProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1967
- The covalent bond in siliconProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1967
- The covalent bond in diamondProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1967
- A general structure factor formalism for interpreting accurate X-ray and neutron diffraction dataProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1967
- Electrostatic Polarizability and Shielding Factors for Ions of Neon ConfigurationPhysical Review B, 1967
- Electric Dipole Polarizability of Atoms by the Hartree—Fock Method. III. The Isoelectronic 10-Electron SeriesThe Journal of Chemical Physics, 1966
- The Electric Field in Crystals: II. The Refractivities of Anatase and BrookiteProceedings of the Physical Society, 1963
- The Electric Field in Crystals: The Refractivity of RutileProceedings of the Physical Society, 1962
- Electrical polarizability as a criterion for molecular wave functionsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1953