- Previous Article
- Next Article
- Table of Contents
Materials Research Bulletin, Vol.29, No.8, 911-917, 1994
Electron-Paramagnetic-Resonance Spectra of Gadolinium(III) Ions in Lead Acetate Glasses
Electron Paramagnetic Resonance (EPR) studies have been made on lead acetate glasses doped with Gd(III) ions on an X-band ESR spectrometer in the temperature range 123 K to 423 K. The spectrum exhibits three features with effective g-values of approximately 5.6, 2.83 and 2.02 and weaker features at g = 3.6 and 4.3. The spectra are similar to the "U" spectra familiar in many oxide and fluoride glasses, which confirms once more that the rare-earth ions tend to impose their own environment when introduced into a glass. Remarkable changes have been observed in the EPR spectrum, with changes in temperature, particularly at the glass transition temperature (T(g) = 317 K).