Geetha, M. and Rao, Ashok and Thukaram, M. and Agarwal, S. K. and Bhatt, Ramesh Chandra and Tyagi, Kriti and Kuo, Y. K. (2014) Electrical and thermal transport properties of Dy0.95Pr0.05Ba2 (Cu1-xMx)(3)O-7-delta with (M=Fe, Co, Ni and Zn) bulk superconductors. Solid State Communications, 187. 38-42 . ISSN 0038-1098

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Abstract

In the present communication, measurements of transition temperature, thermal conductivity, thermoelectric power and specific heat have been carried out on pristine and co-doped samples of Dy0.95Pr0.05Ba2(Cu-0.98 M-0.02)(3)O7-delta system [M=Fe, Co, Ni and Zn]. The electrical resistivity results show that all the samples exhibit metallic behavior. The thermal conductivity results illustrate that for pristine sample of DyBa2Cu3O7-delta, the expected pronounced hump in thermal conductivity is seen below the transition temperature. The hump is suppressed with 5% Pr-doping and this is further suppressed with co-doping. The Lhermoelectric power measurements show that L the pristine sample exhibits hole-like behavior and this continues for doped as well co-doped samples. Pristine sample shows the expected jump in specific hear and with Pr-doping a slope change is observed near the transition temperature.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/S Elsevier.
Uncontrolled Keywords:	High TC superconductors Phasetransition Specific heat Transportproperties
Subjects:	Physics
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	22 Sep 2015 11:18
Last Modified:	22 Sep 2015 11:18
URI:	http://npl.csircentral.net/id/eprint/1261

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