Observation of weakly adsorbed oxygen on Y5Ba6Cu11Oy

descriptionPublicationkeyboard_double_arrow_right Article 01 Feb 1992 English Publisher:Springer Science and Business Media LLCJournal:Journal of Superconductivity, volume 5, pages 5-10 (issn: 0896-1107, eissn: 1572-9605,

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Authors: Sendjaja Kao; K. Y. Simon Ng;

doi: 10.1007/bf00617989

Observation of weakly adsorbed oxygen on Y5Ba6Cu11Oy

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Abstract

We observed, for the first time, adsorption of weakly bonded oxygen at low temperature (<-250°C) by a Y5Ba6Cu11O y sample, using thermogravimetric analysis. The resulting “oxygen enriched” phase in the surface layers may be attributed to the observation of a superconductivity-like transition at above 200 K.

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