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http://hdl.handle.net/10773/5115
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Golden, S. J. | pt |
dc.contributor.author | Bloomer, T. E. | pt |
dc.contributor.author | Lange, F. F. | pt |
dc.contributor.author | Segadães, A. M. | pt |
dc.contributor.author | Vaidya, K. J. | pt |
dc.contributor.author | Cheetham, A. K. | pt |
dc.date.accessioned | 2012-01-13T15:53:48Z | - |
dc.date.issued | 1991-01 | - |
dc.identifier.issn | 0002-7820 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/5115 | - |
dc.description.abstract | Thin films in the Bi-Sr-Ca-Cu-O system have been synthesized from liquid ethylhexanoate precursors by spin pyrolysis. An extensive solid-solution range was found for the two-Cu-layer phase through the study of c-axis-oriented, single-phase thin films fabricated on single-crystal, (100)-oriented, MgO substrates. All two-layer compositions were excess in Bi and deficient in Sr + Ca relative to the ideal 2212 composition and showed an overall cation deficiency. The solidus temperature and c lattice parameter were found to vary systematically with composition. Sharp superconductive transitions were obtained in the case of a number of different compositions with T(c) varying between 72 and 84 K. Evidence for significant compositional heterogeneities within single-phase two-layer thin films was found and the implications for superconductivity are discussed. Compositions within the solid-solution range gave single-phase, c-axis-oriented films over a wide temperature range extending from 730-degrees-C to an upper, solidus (or peritectic) temperature (780-degrees to 840-degrees-C) which is dependent on the initial starting composition. A model has been developed that describes the formation of the two-layer phase from a fugitive liquid. | pt |
dc.description.sponsorship | DARPA - Contract N.º N00014-88-C-0713 | pt |
dc.language.iso | eng | pt |
dc.publisher | Wiley Blackwell | pt |
dc.rights | restrictedAccess | por |
dc.subject | films | pt |
dc.subject | superconductors | pt |
dc.subject | solid solutions | pt |
dc.subject | processing | pt |
dc.subject | bismuth | pt |
dc.title | Processing and characterization of thin-films of the 2-layer superconducting phase in the bi-sr-ca-cu-o system: evidence for solid-solution | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 123 | pt |
degois.publication.issue | 1 | - |
degois.publication.issue | 1 | pt |
degois.publication.lastPage | 129 | pt |
degois.publication.title | Journal of the American Ceramic Society | pt |
degois.publication.volume | 74 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.identifier.doi | 10.1111/j.1151-2916.1991.tb07307.x | * |
Appears in Collections: | DEMaC - Artigos |
Files in This Item:
File | Description | Size | Format | |
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JACS 74(1991)123-129.pdf | Documento principal | 3.01 MB | Adobe PDF |
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