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Influence of Fe Buffer Layer on Co-Doped BaFe2As2 Superconducting Thin Films
Joint Authors
de Lisio, C.
Valentino, M.
Laviano, F.
Pepe, G. P.
Kurth, F.
Iida, K.
Ichinose, A.
Tsukada, I.
Bonavolontà, Carmela
Source
Advances in Condensed Matter Physics
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-07-14
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
A systematic characterization of Co-doped BaFe2As2 (Ba-122) thin films has been carried out.
Two samples were available, one grown on CaF2 substrate and the other on MgO with an Fe buffer layer.
The goal was to investigate films’ magnetic and superconducting properties, their reciprocal interplay, and the role played by the Fe buffer layer in modifying them.
Morphological characterization and Energy Dispersive X-ray analyses on the Fe-buffered sample demonstrate the presence of diffused Fe close to the Co-doped Ba-122 outer surface as well as irregular holes in the overlying superconducting film.
These results account for hysteresis loops obtained with magneto-optic Kerr effect measurements and observed at both room and low temperatures.
The magnetic pattern was visualized by magneto-optical imaging with an indicator film.
Moreover, we investigated the onset of superconductivity through a measure of the superconducting energy gap.
The latter is strictly related to the decay time of the excitation produced by an ultrashort laser pulse and has been determined in a pump-probe transient reflectivity experiment.
A comparison of results relative to Co-doped Ba-122 thin films with and without Fe buffer layer is finally reported.
American Psychological Association (APA)
Bonavolontà, Carmela& de Lisio, C.& Valentino, M.& Laviano, F.& Pepe, G. P.& Kurth, F.…[et al.]. 2015. Influence of Fe Buffer Layer on Co-Doped BaFe2As2 Superconducting Thin Films. Advances in Condensed Matter Physics،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1052307
Modern Language Association (MLA)
Bonavolontà, Carmela…[et al.]. Influence of Fe Buffer Layer on Co-Doped BaFe2As2 Superconducting Thin Films. Advances in Condensed Matter Physics No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1052307
American Medical Association (AMA)
Bonavolontà, Carmela& de Lisio, C.& Valentino, M.& Laviano, F.& Pepe, G. P.& Kurth, F.…[et al.]. Influence of Fe Buffer Layer on Co-Doped BaFe2As2 Superconducting Thin Films. Advances in Condensed Matter Physics. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1052307
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1052307