Structural and magnetic properties of lead-bismuthate oxide glasses containing S-state paramagnetic ions

β-Irradiation effects in Gd-doped borosilicate glasses studied by EPR and Raman spectroscopies

“…2, show well-known lines for socalled 'U' spectrum at 1173, 2460, and 3450 G (g $ 6.0, 2.8, and 2, respectively) typical for Gd 3+ ion in glasses with S = 7/2 [8,11]. The last asymmetric line at 1535 G (g $ 4.8) is attributed to another Gd 3+ site in glasses [11,15]. A broad line (6000 G width) around g $ 2 appears in the EPR spectrum and its intensity increases as a function of gadolinium oxide doping.…”

Thermal, structural and magnetic properties of some zinc phosphate glasses doped with manganese ions

“…The magnetic properties of glasses containing manganese depend on the concentration of the 3d element and the ratio of valence states as well as on the structure of the vitre- ous matrix and implicitly on the conditions of sample preparation. The superexchange interaction of the manganese ions in the oxide glasses has been mostly attributed to an antiferromagnetic coupling within the pairs Mn 2+ -Mn 2+ , Mn 2+ -Mn 3+ and Mn 3+ -Mn 3+ [33,[37][38][39].…”

Iron environment in calcium-soda-phosphate glasses and vitroceramics

“…The paramagnetic centers which can be investigated by EPR are ions of transitional metals or centers associated with electrically charged or neutral defects [9]. The shape and parameters of EPR spectra for glass samples depend on glass composition and short range order characterizing the local structure.…”