Strain analysis of multiferroic BiFeO3-CoFe2O 4 nanostructures by Raman scattering

O. Chaix-Pluchery; C. Cochard; P. Jadhav; J. Kreisel; N. Dix; F. Sánchez; J. Fontcuberta

doi:10.1063/1.3626595

Strain analysis of multiferroic BiFeO₃-CoFe₂O ₄ nanostructures by Raman scattering

O. Chaix-Pluchery, C. Cochard, P. Jadhav, J. Kreisel (Lead / Corresponding author), N. Dix, F. Sánchez, J. Fontcuberta

Mechanical and Industrial Engineering

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

We report a Raman scattering investigation of columnar BiFeO ₃-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.

Original language	English
Article number	072901
Journal	Applied Physics Letters
Volume	99
Issue number	7
DOIs	https://doi.org/10.1063/1.3626595
Publication status	Published - 15 Aug 2011

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "We report a Raman scattering investigation of columnar BiFeO 3-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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AU - Chaix-Pluchery, O.

AU - Cochard, C.

AU - Jadhav, P.

AU - Kreisel, J.

AU - Dix, N.

AU - Sánchez, F.

AU - Fontcuberta, J.

PY - 2011/8/15

Y1 - 2011/8/15

N2 - We report a Raman scattering investigation of columnar BiFeO 3-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.

AB - We report a Raman scattering investigation of columnar BiFeO 3-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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Strain analysis of multiferroic BiFeO₃-CoFe₂O ₄ nanostructures by Raman scattering

Abstract

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