Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C.
1999
|
| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=94200961 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Table of Contents:
- Preparation and properties of precursor Ba-Ca-Cu-(O,F) thin films deposited from fluorides for superconducting Tl- and Hg- based films ¿ Beòaèka F. Hanic S. Jimenez M. Jergel ¿ Chromik V. Strbík C. Falcony J.C. Cheang E. Andrade Física, Astronomía y Matemáticas Precursor Ba-Ca-Cu-(O,F) thin films prepared by thermal evaporation of BaF2, CaF2 and Cu show a good chemical resistance against the atmospheric influence even after a partial defluorination by means of a vacuum annealing with subsequent oxidation. The prepared precursor films were characterized by X-ray diffraction (XRD) analyses and Raman scattering measurements. A possible explanation of the observed properties is presented. According to the XRD measurements performed in the grazing incidence set-up, a polycrystalline cubic BaCuO2 is the majority phase after defluorination followed by an oxidation process. No peaks belonging to carbides (as a consequence of an atmospheric exposure of samples) were identified. Raman analysis confirmed a presence of another namely CuO phase 1999 artículo científico 1665-3521 https://www.redalyc.org/articulo.oa?id=94200961 en http://www.redalyc.org/revista.oa?id=942 Superficies y vacío application/pdf Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Superficies y vacío (México) Num.9