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arXiv · 1107.4682

Strain analysis of multiferroic BiFeO3-CoFe2O4 nanostructures by Raman scattering

O. Chaix-Pluchery·C. Cochard·P. Jadhav·J. Kreisel·N. Dix·F. Sanchez·J. Fontcuberta
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Abstract

We report a Raman scattering investigation of columnar BiFeO3-CoFe2O4 (BFO-CFO) epitaxial thin film nanostructures, where BFO pillars are embedded in a CFO matrix. The feasibility of a strain analysis is illustrated through an investigation of two nanostructures with different BFO-CFO ratios. We show that the CFO matrix presents the same strain state in both nanostructures, while the strain state of the BFO pillars depends on the BFO/CFO ratio with an increasing tensile strain along the out-of-plane direction with decreasing BFO content. Our results demonstrate that Raman scattering allows monitoring strain states in complex 3D multiferroic pillar/matrix composites.

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O. Chaix-Pluchery, C. Cochard, P. Jadhav, J. Kreisel, N. Dix, F. Sanchez, J. Fontcuberta. 2011-07-23. Strain analysis of multiferroic BiFeO3-CoFe2O4 nanostructures by Raman scattering. https://doi.org/10.1063/1.3626595

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