Effect of hydrostatic pressure on the elastic constants of cubic Pb
- 15 January 1980
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 21 (2) , 843-846
- https://doi.org/10.1103/physrevb.21.843
Abstract
The adiabatic elastic stiffness moduli of fluorite-structure Pb have been determined at hydrostatic pressures up to 3 kbar by means of ultrasonic velocity measurements at 296 K. All moduli increase linearly with pressure indicating that the impending transformation to the orthorhombic structure at 4 kbar is not due to softening of long-wavelength acoustic modes. It is found that a simple lattice-dynamical shell model fails to account for the pressure dependences of the moduli. Possible reasons are suggested.
Keywords
This publication has 13 references indexed in Scilit:
- Anomalies in the specific heat of PbF2Solid State Communications, 1979
- Pressure dependences of the elastic constants of semiconducting Nbat 296 KPhysical Review B, 1978
- High temperature heat content and diffuse transition of lead fluorideSolid State Communications, 1976
- Temperature and pressure dependences of the dielectric properties of Pband the alkaline-earth fluoridesPhysical Review B, 1976
- Light scattering study of the onset of disorder in solid electrolytes at high temperaturesJournal of Physics C: Solid State Physics, 1975
- Pressure-Induced Phase Transitions in Solids: BaPhysical Review B, 1970
- The elastic compliances of lead fluorideJournal of Physics D: Applied Physics, 1970
- Pressure and temperature derivatives of the elastic constants of caF2 and BaF2Journal of Physics and Chemistry of Solids, 1968
- Ultrasonic Phase Velocity by the Pulse-Echo-Overlap Method Incorporating Diffraction Phase CorrectionsThe Journal of the Acoustical Society of America, 1967
- Elastic Constants of Cubic Lead Fluoride at Room TemperatureJournal of Applied Physics, 1965