Significant reduction in the magnitude of thermal conductivity of a sample of YBa2Cu3O7-y (YBCO) has been observed when the sample was stored in dry air for a period of one year, though it was reoxygenated to restore superconductivity. A modified BRT type analysis points to an increase in point defects and planar defects. © 1994.

Sankaranarayanan V

Department Of Physics

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IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

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Journal	Physica C: Superconductivity and its applications
ISSN	09214534
Open Access	No