Issue 1, 1991

Microwave absorption characterization of the YBa2Cu3O7–δ high-temperature superconductor prepared by different sintering and oxygen annealing times

Abstract

Low-field microwave absorption (LFMA) has been used to characterize and monitor subtle structural changes produced during the sintering and oxygen annealing process in the preparation of high-temperature superconductors such as YBa2Cu3O7–δ. LFMA measurements are compared with Meissner effect and resistance measurements and to the sample morphology. The LFMA technique as a probe is found to be more sensitive and discriminatory. It allows for an accurate determination of the onset transition temperature and is sensitive to identify multi-superconducting phases. Oxygen stoichiometry, grain size and inter-, intra-granular contacts are found to affect the LFMA intensity.

Article information

Article type
Paper

J. Chem. Soc., Faraday Trans., 1991,87, 167-174

Microwave absorption characterization of the YBa2Cu3O7–δ high-temperature superconductor prepared by different sintering and oxygen annealing times

M. Puri, S. Marrelli, L. Li, S. Cuvier, J. Bear and L. Kevan, J. Chem. Soc., Faraday Trans., 1991, 87, 167 DOI: 10.1039/FT9918700167

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