Optical Spectra of Yb3+ in Crystals with Scheelite Structure. II. Crystal-Field Calculations and a Phenomenological Crystal-Field Model.
Abstract
In a previous report we presented the results of a series of measurements of the optical and Zeeman spectra of trivalent ytterbium doped into the following members of the scheelite family of crystalline hosts: cadmium molybdate (CdMoO4), calcium tungstate (CaWO4), calcium molybdate (CaMoO4), strontium tungstate (SrWO4), strontium molybdate (SrMoO4), lead tungstate (PbWO4), lead molybdate (PbMoO4), barium tungstate (BaWO4), and lithium yttrium fluoride (LiYF4). Measurements were made at temperatures varying from below the lambda point of liquid helium up to room temperature on samples with impurity ion concentrations varying from 0.05 to 4.0 percent Yb. The results were the identification of the electronic transitions, both absorption and fluorescence, and the measurement of the g factors of the lowest J = 5/2 state. The objective of this report is to take these experimental results and from them derive a self-consistent set of crystal-field parameters. Following this calculation, using the conventional approach of the electrostatic point charge model, we calculate a similar set of crystal-field parameters to compare with the experimentally determined ones.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1980
- Accession Number
- ADA090976
Entities
People
- Edward A. Brown
Organizations
- Harry Diamond Laboratories