Growth and optical properties of FePt:BaTiO3 nanocomposite films. (19th August 2016)

• Record Type: Journal Article
• Authors: Xiao, T T; Casanove, M J; Cai, C Z; Yang, Q; Zhao, Y; Wu, W D
• Is Part Of: Materials research express. Volume 3:Number 8(2016)
• Publication Date: 2016-08-19
• Subjects: multilayered film -- BaTiO3 -- pulsed laser deposition -- UV–vis spectroscopy; 61.05.-a -- 61.46.Df -- 61.46.Hk -- 74.25.Gz; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/3/8/086404
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: FePt:BaTiO3 nanocomposite films consisting of a regular stacking of pure BaTiO3 (BTO) layers and BTO layers embedding FePt nanocrystals were grown on (001) MgO substrates by pulsed laser deposition. Transmission electron microscopy experiments on cross-sectional specimens demonstrated the high quality of the epitaxial growth of the different layers, whatever their composition. The structural analysis also gave evidence of a misfit strain relaxation at the BTO/MgO interface. We report and discuss the optical and pholuminescence properties of the nanocomposite films in comparison with the ones recorded in pure BTO films. Our results emphasize the role of nanostructuration and growth processes on the evolution of the observed properties.