Brillouin scattering in single crystals of γ-oxygen: Determination of the elastic constants at the triple point
- 15 June 1975
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 62 (12) , 4780-4786
- https://doi.org/10.1063/1.430427
Abstract
The technique of high resolution Brillouin spectroscopy has been used to determine the adiabatic elastic constants of oriented single crystals of γ‐oxygen at temperatures near the triple point (54.39 K). The values obtained were c11 = 2.5(98), c12 = 2.0(58), c44 = 0.27(5) (in units of 1010 dyn cm−2) with an estimated absolute uncertainty of ±2%. The resulting value for the elastic anisotropy parameter was found to be 1.0(2). Estimates of the relative values of the elasto‐optic coefficients were also obtained. It is concluded that γ‐oxygen is ’’plastic’’ in nature.Keywords
This publication has 25 references indexed in Scilit:
- Brillouin scattering in crystals of γ-oxygenSolid State Communications, 1974
- Velocity of hypersonic waves in liquid oxygenThe Journal of Chemical Physics, 1973
- The Scattering of Light by Elastic Waves in Cubic CrystalsOptica Acta: International Journal of Optics, 1973
- Model for the lattice vibrations of a crystal of diatomic molecules—II. Quasiharmonic equation of stateJournal of Physics and Chemistry of Solids, 1972
- Determination of the Elastic Constants of Xenon Single Crystals by Brillouin ScatteringPhysical Review B, 1971
- Antiferromagnetic Solid OxygenJournal of Applied Physics, 1971
- Expansion Coefficients and Transformation Characteristics of Solid OxygenPhysical Review B, 1967
- Brillouin Scattering in Cubic CrystalsPhysical Review B, 1966
- Single-crystal studies of β-F2and of γ-O2Acta Crystallographica, 1964
- THE REFRACTIVE INDICES OF LIQUID OXYGEN, NITROGEN, AND HYDROGENCanadian Journal of Research, 1937