Title:
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Cationic Diffusion in La2/3Ca1/3MnO3 Thin Films Grown on LaAlO3 (001) Substrates.
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Author:
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Estradé Albiol, Sònia; Arbiol i Cobos, Jordi; Peiró Martínez, Francisca; Abad, Ll.; Laukhin, Vladimir; Balcells i Argemí, Lluís; Martínez Perea, Benjamin
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Other authors:
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Universitat de Barcelona |
Abstract:
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Microstructural features of La2/3Ca1/3MnO3 layers of various thicknesses grown on top of 001 LaAlO3 substrates are studied by using transmission electron microscopy and electron energy loss spectroscopy. Films are of high microstructural quality but exhibit some structural relaxation and mosaicity both when increasing thickness or after annealing processes. The existence of a cationic segregation process of La atoms toward free surface has been detected, as well as a Mn oxidation state variation through layer thickness. La diffusion would lead to a Mn valence change and, in turn, to reduced magnetization. |
Subject(s):
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-Pel·lícules fines -Cations -Propietats magnètiques -Thin films -Cations -Magnetic properties |
Rights:
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(c) American Institute of Physics , 2007
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Document type:
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Article Article - Published version |
Published by:
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American Institute of Physics
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