Three-dimensional heteroepitaxy in self-assembled BaTiO 3- CoFe 2O 4 nanostructures

Publication Type:

Journal Article

Authors:

H. Zheng; J. Wang; L. Mohaddes-Ardabili; M. Wuttig; L. Salamanca-Riba; D.G. Schlom; Ramamoorthy Ramesh

Source:

Applied Physics Letters, Volume 85, Number 11, p.2035-2037 (2004)

Keywords:

Barium titanate, diffraction, Electron diffraction patterns, Laser beams, Laser density, Molar ratio, Nanopillars, nanostructured materials, Perovskite, pulsed laser deposition, Radiation effects, Self assembly, Single crystals, substrates, Synthesis (chemical), Thermal effects, Thickness measurement, transmission electron microscopy

Abstract:

Pulse laser deposition was used to investigate self-assembled BaTiO 3-CoFe 2O 4 complex oxide nanostructures. A single ceramic target with the molar ratio of 0.62BaTiO 3-0.38CoFe 2O 4 was used. The nanostructures, with CoFe 2O 4 nanopillars assembled in a BaTiO 3 matrix are epitaxial in-plane and out-of-plane. The results show that the substrate temperature increases from 750 to 950°C and the average diameter of the pillars increased from ∼9 to ∼70 nm.

Notes:

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