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|Title:||Dielectric relaxation in glassy Se70Te30-xAgx|
|Keywords:||Chalcogenide glasses;Dielectric relaxation;Ternary alloys|
|Abstract:||Temperature dependence of dielectric constant (e')and dielectric loss (e") are studied in glassy Se70Te30-xAgxwhere x is varied from 0 to 10 in the frequency range 1 to 10 kHz and temperature range 300-350 K. The results indicate that the dielectric dispersion exists in the above frequency and temperature range. Loss peaks in e" versus T curve could be observed in ternary Se70Te30-xAgx alloys. However, such loss peaks could not be observed in binary Se70Te30 alloy, which indicates that Ag incorporation in binary system, is responsible for such behaviour. This is explained in terms of [(D-) (Ag+)] dipoles which otherwise were not present in the undoped samples.|
|ISSN:||0975-1041 (Online); 0019-5596 (Print)|
|Appears in Collections:||IJPAP Vol.44(01) [January 2006]|
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