Nu. Haque et al., DIELECTRIC-RELAXATION IN SILVER PHOSPHATE AND SILVER BOROPHOSPHATE GLASSES, Physica status solidi. a, Applied research, 137(1), 1993, pp. 235-240
Dielectric measurements, tan delta and G(omega), in 0.40Ag2O-0.60P2O5,
0.60Ag2O-0.40P2O5, and 0.60Ag2O-0.08B2O3-0.32P2O5 glasses are reporte
d in the frequency range 10(-3) to 10(5) Hz and the temperature range
175 to 400 K. Anomalous behaviour of tan delta is observed in the 0.60
Ag2O-0.08 B2O3-0.32P2O5 glass and is interpreted in connection with th
e existence of BPO4 and BO4 groups in the glass. Activation energies f
or dielectric relaxation and conduction are found to be close.