Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/10650
Title: Growth and magnetic properties of multiferroic LaxBi1-xMnO3 thin films
Author: Gajek, M.
Bibes, Manuel
Wyczisk, F.
Varela Fernández, Manuel, 1956-
Fontcuberta i Griñó, Josep
Barthelemy, A.
Keywords: Pel·lícules fines
Propietats magnètiques
Magnetic properties and materials
Issue Date: 2007
Publisher: The American Physical Society
Abstract: A comparative study of LaxBi1-xMnO3 thin films grown on SrTiO3 substrates is reported. It is shown that these films grow epitaxially in a narrow pressure-temperature range. A detailed structural and compositional characterization of the films is performed within the growth window. The structure and the magnetization of this system are investigated. We find a clear correlation between the magnetization and the unit-cell volume that we ascribe to Bi deficiency and the resultant introduction of a mixed valence on the Mn ions. On these grounds, we show that the reduced magnetization of LaxBi1-xMnO3 thin films compared to the bulk can be explained quantitatively by a simple model, taking into account the deviation from nominal composition and the Goodenough-Kanamori-Anderson rules of magnetic interactions.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.75.174417
It is part of: Physical Review B, 2007, vol. 75 , núm, 17, p. 174417-1-174417-7
URI: http://hdl.handle.net/2445/10650
ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Física Aplicada)

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