TEMPERATURE DEPENDENCE OF THE INFRARED SPECTRA OF SELECTED DIELECTRICS.
Abstract
The infrared spectra was measured for LiF and MgO at temperatures ranging from 7.5K up to near the melting point for each crystal. The data were curve-fitted to a two-pole, damped, harmonic oscillator model and a temperature dependent expression for the dielectric constant was determined. These expressions were compared in detail to existing quantum mechanical models for the dielectric susceptibility and reasonably good agreement between theory and experiment was observed. However, some deviations at low temperatures appear between experiment and the best quantum mechanical models available. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 20, 1965
- Accession Number
- AD0624846
Entities
People
- E. P. Marram
- J. R. Jasperse
- O. M. Clark
Organizations
- Arthur D. Little