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Growth of ferromagnetic La2/3Ca1/3MnO3 / ferroelectric BaTiO3 heterostructures

AuthorsMarín, Lorena; Pardo, J. A.; Morellón, Luis; Algarabel, Pedro A.
Issue Date2012
CitationAPS March Meeting 2012
AbstractMultiferroic materials exhibiting simultaneous ferroelectricity and ferromagnetism have potential applications in information storage and in the emerging field of spintronics. Ferromagnetic / ferroelectric multilayers could be a way to obtain a multiferroic heterostructure. We addressed to deposit the ferromagnetic phase of the La1-xCaxMnO3 and the ferroelectric BaTiO3 seeking a multiferroic properties in these hetero structures. We have optimized the growth parameters for depositing BaTiO3 (BTO) / La2/3Ca1/3MnO3 (LCMO) / (001)SrTiO3 by pulsed laser deposition (PLD) at pure oxygen atmosphere and a substrate temperature of 820 C. The bilayer structure and microstructure were studied by x-ray diffraction (XRD) and atomic force microscopy (AFM). For individual layers, lattice parameter is aBTO=4.068 å, and aLCMO=3.804 å, whereas in the bilayer, Bragg peaks for LCMO maintain its position but BTO peak shift to lower Bragg angle indicating a strained BTO film. Magnetization and polarization measurements indicate a possible multiferroic heterostructures.
DescriptionResumen del póster presentado al American Physical Society March Meeting celebrado en Boston (US) del 27 de febrero al 2 de marzo de 2012.-- et al.
Publisher version (URL)http://meetings.aps.org/link/BAPS.2012.MAR.S1.238
Appears in Collections:(ICMA) Comunicaciones congresos
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