Microwave loss and oxygen annealing in YBa2Cu3Ox single crystals

S. H. Glarum; L. F. Schneemeyer; J. V. Waszczak

doi:10.1103/PhysRevB.41.1837

Microwave loss and oxygen annealing in YBa2Cu3Ox single crystals

S. H. Glarum, L. F. Schneemeyer, J. V. Waszczak

Chemistry and Biochemistry

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18 Scopus citations

Abstract

Reversible thermal annealing of YBa2Cu3Ox single crystals in air has been studied by microwave loss measurements. Among the advantages of this contactless technique are the following: Crystals are kept in sealed capillaries throughout cycles of annealing and low-temperature measurement; features are resolved in loss versus temperature measurements that are not revealed by other techniques. Microwave loss is interpreted in terms of the Gittleman-Rosenblum model of fluxon motion in a viscous medium. Narrow temperature ranges are found for the formation of the 60- and 90-K phases. Optimal microwave response is obtained after but a few hours of annealing, indicating the importance of c-axis diffusion.

Original language	English
Pages (from-to)	1837-1841
Number of pages	5
Journal	Physical Review B
Volume	41
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.41.1837
State	Published - 1 Jan 1990

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AU - Schneemeyer, L. F.

AU - Waszczak, J. V.

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