NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.42 [2004] >
IJPAP Vol.42(07) [July 2004] >


Title: Dielectric relaxation studies of (Ge20Se80)0.90Sn0.10 glassy alloy
Authors: Chandel, Pradeep S
Thakur, Anup
Sharma, Vineet
Goyal, N
Tripathi, S K
Keywords: Dielectric relaxation
Glassy alloy
AC conductivity
Issue Date: Jul-2004
Publisher: CSIR
IPC CodeC 22 C
Abstract: The frequency and temperature dependence of ac conductivity measurements have been made on (Ge20Se80)0.90Sn0.10 glassy alloy in the frequency range 2-50 kHz and in the temperature range 273-373K. Dielectric constant (') has been calculated using this data. The results indicate that dielectric dispersion occurs in this temperature and frequency range. The dielectric loss ('') and loss angle (tan) have been calculated using Gever’s relation. The temperature dependence of dielectric loss ('') shows relaxation peaks as a function of temperature. These relaxation peaks shift towards the higher temperature as the frequency is increased. A detailed analysis of the data shows that the results can be explained in terms of dipolar relaxation with a distribution of relaxation times, which is quite expected in case of chalcogenide glasses.
Page(s): 539-543
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.42(07) [July 2004]

Files in This Item:

File Description SizeFormat
IJPAP 42(7) 539-543.pdf61.22 kBAdobe PDFView/Open
 Current Page Visits: 343 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 511884 since 06-Feb-2009  Last updated on 21-Apr-2014Webmaster: nopr@niscair.res.in