Electron paramagnetic resonance and optical absorption spectra of Fe(III) ions in lead acetate glasses

Abstract

Electron paramagnetic resonance (EPR) and optical absorption spectra of Fe(III) ions doped in lead acetate glasses have been studied. EPR spectra exhibit a single absorption line corresponding to g = 2.0. The linewidths of the EPR absorption lines are studied as a function of temperature and it is found that the linewidth decreases with increase in temperature. The optical absorption spectra of the glasses are measured at room temperature. The spectra exhibit five bands characteristic of Fe(III) ions in octahedral symmetry. The crystal field parameter Dq and the Racah interelectronic repulsion parameters B and C have been evaluated.