Infra-red absorption of beryllium in cadmium telluride: II
- 1 July 1969
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 2 (7) , 1137-1145
- https://doi.org/10.1088/0022-3719/2/7/306
Abstract
The dispersion curves and normal modes of vibration of CdTe have been calculated using a shell model. The single-phonon and combined two-phonon density of states have been computed and the latter is compared with measured two-phonon infra-red absorption. The infra-red absorption induced in CdTe by Be impurity is also calculated and compared with experiment. A resonance mode of Be is observed at 61 cm-1 and a local mode at 391 cm-1; calculated values of these modes obtained using a defect mass approximation are in good agreement with experiment. The structure of observed side bands arising from a simultaneous excitation of the local Be mode and lattice band modes is discussed.Keywords
This publication has 15 references indexed in Scilit:
- Infra-red absorption of beryllium in cadmium telluride: IJournal of Physics C: Solid State Physics, 1969
- Vibrational Spectra of U1‐Centres in KIPhysica Status Solidi (b), 1968
- Infrared Absorption Spectrum of CdTeThe Journal of Chemical Physics, 1967
- Localized vibrations of H – and D – ions in the alkaline earth fluoridesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1965
- Selection rules for defect-activated lattice bands and vibronic transitions in face-centred cubic, diamond and zinc blende latticesProceedings of the Physical Society, 1964
- Refractive Index of ZnSe, ZnTe, and CdTeJournal of Applied Physics, 1964
- A new sampling method for calculating the frequency distribution function of solidsPhysics Letters, 1964
- The elastic and dielectric properties of crystals with polarizable atomsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1962
- Band edge emission properties of CdTeJournal of Physics and Chemistry of Solids, 1961
- On the Polar Vibrations of Alkali HalidesPhysical Review B, 1941