Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/24965
Title: Synthesis, structure, and magnetic studies on self-assembled BiFeO3-CoFe2O4 nanocomposite thin films
Author: Muralidharan, R.
Dix, Nico
Skumryev, Vassil Hristov
Varela Fernández, Manuel, 1956-
Sánchez Barrera, Florencio
Fontcuberta i Griñó, Josep
Keywords: Nanoestructures
Ferromagnetisme
Magnetisme
Pel·lícules fines
Nanostructures
Ferromagnetism
Magnetism
Thin films
Issue Date: 5-Feb-2008
Publisher: American Institute of Physics
Abstract: Self-assembled (0.65)BiFeO3-(0.35)CoFe2O4 (BFO-CFO) nanostructures were deposited on SrTiO3 (001) and (111) substrates by pulsed laser deposition at various temperatures from 500 to 800°C. The crystal phases and the lattice strain for the two different substrate orientations have been determined and compared. The films grow epitaxial on both substrates but separation of the spinel and perovskite crystallites, without parasitic phases, is only obtained for growth temperatures of around 600-650°C. The BFO crystallites are out-of-plane expanded on STO(001), whereas they are almost relaxed on (111). In contrast, CFO crystallites grow out-of-plane compressed on both substrates. The asymmetric behavior of the cell parameters of CFO and BFO is discussed on the basis of the role of the epitaxial stress caused by the substrate and the spinel-perovskite interfacial stress. It is concluded that interfacial stress dominates the elastic properties of CFO crystallites and thus it may play a fundamental on the interface magnetoelectric coupling in these nanocomposites.
Note: Reproducció del document publicat a: http://dx.doi.org/10.1063/1.2832346
It is part of: Journal of Applied Physics, 2008, vol. 103, núm. 7, p. 07E301
Related resource: http://dx.doi.org/10.1063/1.2832346
URI: http://hdl.handle.net/2445/24965
ISSN: 0021-8979
Appears in Collections:Articles publicats en revistes (Física Aplicada)

Files in This Item:
File Description SizeFormat 
568476.pdf439.72 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.