THE FARADAY EFFECT IN CEROUS METAPHOSPHATE GLASS.
Abstract
A cerous metaphosphate glass was made with approximately stoichiometric composition and without any detectable quantity of Ce(4+). The Faraday rotation of this glass was measured as a function of wavelength and temperature for wavelengths between 0.3475 microns and 1.709 microns and for temperatures between 205K and 480K. The rotation from the 4f electron of the Ce(3+) was determined by subtracting the rotation of an equivalent lanthanum metaphosphate glass from these measurements. A tentative D3 model for the Ce(3+) site in the glass was proposed. For calculation purposes it was assumed that the site was approximately octahedral in an ionic solid. The Faraday rotation was computed for the 4f-5d virtual transition of Ce(3+) with the light rays and magnetic field parallel along the C3 and C4 axes. The rotation was found to be identical for both axes. The theoretical calculations were fitted to the experimental results at 0.4358 microns and were found to predict the rotation at the remaining temperatures and wavelengths with an acceptable degree of accuracy. It was pointed out that calculations for a cubic or a tetrahedral site would not agree with the data. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1968
- Accession Number
- AD0841040
Entities
People
- Charles C. Robinson