Comparison of the effect of processing parameters and degradation on the DC and microwave properties of thin films and polycrystalline bulk high-Tc superconducting materials

Pragasam, R and Srinivasan, C and Murthy, VRK and Viswanathan, B and Sobhanadri, J and Satyalakshmi, KM and Hegde, MS (1993) Comparison of the effect of processing parameters and degradation on the DC and microwave properties of thin films and polycrystalline bulk high-Tc superconducting materials. In: Superconductor Science and Technology, 6 (6). pp. 402-407.

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Abstract

The sharp increase in microwave power loss (the reverse of what has previously been reported) at the transition temperature in high-Tc superconducting systems such as YBaCu oxide (polycrystalline bulk and thin films obtained by the laser ablation technique) and BiPbSrCaCu oxide is reported. The differences between DC resistivity ( rho ) and the microwave power loss (related to microwave surface resistance) are analysed from the data obtained by a simultaneous measurement set-up. The influence of various parameters, such as preparation conditions, thickness and aging of the sample and the probing frequency (6-18 GHz), on the variation of microwave power loss with temperature is outlined.

Item Type:	Journal Article
Publication:	Superconductor Science and Technology
Publisher:	Institute of Physics
Additional Information:	Copyright of this article belongs to Institute of Physics.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	02 Feb 2011 10:49
Last Modified:	02 Feb 2011 10:49
URI:	http://eprints.iisc.ac.in/id/eprint/35369

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