Accession Number : AD0712687

Title :   THE ABSORPTION SPECTRUM OF Gd(3+) IN CRYSTALS OF ALKALINE EARTH FLUORIDES - hextet D ENERGY LEVELS.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s) : Ware,Donald McEwen

Report Date : JUN 1970

Pagination or Media Count : 66

Abstract : The splitting of the hextet D(7/2) and hextet D(9/2) energy levels of Gd(3+) ions in CaF2, SrF2, and BaF2 hosts was measured through absorption experiments at 77K. For each host, crystals with several doping concentrations from 0.1 to 0.85 mole % were used so that line growth patterns could be studied. Comparisons with previously identified lines of the hextet P transitions were helpful in identifying the location of the charge compensating ion that produces the various crystal fields. The sites identified in the hextet D(7/2) spectra were the C(3v)(111) in BaF2 crystals, C(4v)(100) in SrF2, and both cubic and tetragonal in CaF2. (Author)

Descriptors :   (*GADOLINIUM, *ULTRAVIOLET SPECTRA), CALCIUM FLUORIDES, CRYSTAL LATTICES, ELECTRON TRANSITIONS, MOLECULAR ENERGY LEVELS, THESES, (U)THESES

Subject Categories : Atomic and Molecular Physics and Spectroscopy
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE