Critical exponent of the electrical conductivity in the paracoherence region of a thin film of YBa2Cu3O7?x

Marhas, MK and Balakrishnan, K and Ganesan, V and Srinivasan, R and Kanjila, D and Mehta, GK and Muralidhar, GK and Rao, M and Nathan, S and Mohan, S (1994) Critical exponent of the electrical conductivity in the paracoherence region of a thin film of YBa2Cu3O7?x. In: Bulletin of materials science, 17 (6). pp. 585-594.

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Abstract

Critical exponent of the electrical conductivity in the paracoherence region (gamma) of the high temperature superconductor YBa2Cu3O7-x (YBCO) has been estimated for high quality thin film on ZrO2 substrate prepared by high pressure oxygen sputtering. High energy ion irradiation was carried out using 100 MeV O-16(7+) ions at liquid nitrogen to see the effects of disorder on the value of the exponent. The critical exponent from a value of about 2 to 1.62 upon irradiation. Studies were also carried film to see the effect of ageing and annealing.

Item Type:	Journal Article
Publication:	Bulletin of materials science
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	High temperature superconductors; resistivity; critical exponents; paracohet~mce;heavy ion irradiation.
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	03 Jun 2011 05:14
Last Modified:	03 Jun 2011 05:14
URI:	http://eprints.iisc.ac.in/id/eprint/36387

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