NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.47 [2009] >
IJPAP Vol.47(09) [September 2009] >

Title: Effect of Ga and Zn doping on coherent transition of YBCO superconductor
Authors: Mohanta, A
Behera, D
Keywords: Superconductors
Excess conductivity
Coherence transition
Issue Date: Sep-2009
Publisher: CSIR
Abstract: The simultaneous incorporation of Ga3+ and Zn2+ to the Cu-site of YBa2Cu3O7 has been analyzed for microstructural and electrical properties. Temperature-dependent electrical resistivity, X-ray diffraction and SEM analysis of a set of YBa2(Cu0.95Zn0.05-xGax)3O7-y films prepared by solid state reaction technique have been investigated to study the substitutional effects of Ga and Zn at chain and plane site of Cu, respectively. The redistribution of charges in the superconducting system due to oxygen content and the resistance of the weak-links related inhomogeneities give rise to Tc degradation and dual values of exponents in the Tc0 region. The exponent values for fluctuation conductivity in the Tc0 region decrease with increase of substitution concentration. The dual exponent character shows that the intergranular weak links develop more resistance with increasing impurities.
Page(s): 676-680
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.47(09) [September 2009]

Files in This Item:

File Description SizeFormat
IJPAP 47(9) 676-680.pdf2.1 MBAdobe PDFView/Open
 Current Page Visits: 955 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  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 © 2015 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: 162723 since 01-Sep-2015  Last updated on 21-Jun-2016Webmaster: