Influence of calcination temperature on the 3D nanoscale topography of LaMnO3 thin films: A comprehensive surface analysis

da Silva, AS and Romaguera-Barcelay, Y and Matos, RS and Das, A and Gandarilla, A and Brito, WR and da Fonseca Filho, HD (2024) Influence of calcination temperature on the 3D nanoscale topography of LaMnO3 thin films: A comprehensive surface analysis. In: Ceramics International .

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Abstract

In this paper, we present a comprehensive study on the 3D nanoscale topography of LaMnO3 thin films, focusing on the influence of calcination temperature on surface morphology. The study reveals significant structural, chemical, and morphological changes as a function of the calcination temperature. XRD analysis confirmed the formation of the orthorhombic LaMnO3 structure at 700 °C, 750 °C, and 800 °C, with increasing unit cell volume and crystallite size observed at higher temperatures. FTIR spectra identified characteristic functional groups associated with molecular vibrations, indicating the perovskite structure. SEM imaging showed grain growth with temperature, while EDS analysis confirmed compound formation and substrate interactions. AFM analysis revealed increased surface roughness with temperature, attributed to nucleation and crystal growth. Morphological and microtextural analyses further detailed changes in surface features, peaks, valleys, and voids. Fractal characterization highlighted variations in surface texture with temperature, with a decrease in dominant wavelength indicating changes in microtexture complexity. Overall, the findings provide insights into the temperature-dependent properties of LaMnO3 thin films, essential for optimizing growth conditions and understanding their potential applications in various fields. © 2024

Item Type:	Journal Article
Publication:	Ceramics International
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to the Publisher.
Keywords:	Calcination; Crystallite size; Fourier transform infrared spectroscopy; Grain growth; Manganese compounds; Nanotechnology; Perovskite; Surface analysis; Surface morphology; Surface roughness; Textures; Thin films; Topography, Calcination temperature; Chemical change; Highest temperature; LaMnO3¸ thin film; Morphological changes; Nanoscale topography; Spatial complexity; Thin-films; Unit-cell volume; XRD analysis, Lanthanum compounds
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Biosystems Science and Engineering
Date Deposited:	29 Aug 2024 11:10
Last Modified:	29 Aug 2024 11:10
URI:	http://eprints.iisc.ac.in/id/eprint/86061

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