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IJPAP Vol.44(01) [January 2006] >


Title: Dielectric relaxation in glassy Se70Te30-xAgx
Authors: Choudhary, N
Kumar, A
Keywords: Chalcogenide glasses
Dielectric relaxation
Ternary alloys
Issue Date: Jan-2006
Publisher: CSIR
IPC CodeG01R27/26
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.
Page(s): 62-65
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.44(01) [January 2006]

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