title: Metal-Organic Chemical Vapor Deposition (MOCVD) Synthesis of Heteroepitaxial Pr0.7Ca0.3MnO3 Films: Effects of Processing Conditions on Structural/Morphological and Functional Properties.
abstract: Calcium-doped praseodymium manganite films (Pr0.7Ca0.3MnO3, PCMO) were prepared by metal-organic chemical vapor deposition (MOCVD) on SrTiO3 (001) and SrTiO3 (110) single-crystal substrates. Structural characterization through X-ray diffraction (XRD) measurements and transmission electron microscopy (TEM) analyses confirmed the formation of epitaxial PCMO phase films. Energy dispersive X-ray (EDX) and X-ray photoelectron spectroscopy (XPS) characterization was used to confirm lateral and vertical composition and the purity of the deposited films. Magnetic measurements, obtained in zero-field-cooling (ZFC) and field-cooling (FC) modes, provided evidence of the presence of a ferromagnetic (FM) transition temperature, which was correlated to the transport properties of the film. The functional properties of the deposited films, combined with the structural and chemical characterization collected data, indicate that the MOCVD approach represents a suitable route for the growth of pure, good quality PCMO for the fabrication of novel spintronic devices.
authors.affiliation: Dipartimento di Scienze Chimiche, Università degli Studi di Catania, INSTM UdR di Catania 95125, Catania, Italy.
authors.forename: Maria R
authors.initials: MR
authors.lastname: Catalano
authors.affiliation: Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, INSTM UdR di Firenze Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Cucinotta
authors.affiliation: Dipartimento di Scienze Chimiche, Università degli Studi di Catania, INSTM UdR di Catania 95125, Catania, Italy.
authors.forename: Emanuela
authors.initials: E
authors.lastname: Schilirò
authors.affiliation: Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, INSTM UdR di Firenze Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy.
authors.forename: Matteo
authors.initials: M
authors.lastname: Mannini
authors.affiliation: Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, INSTM UdR di Firenze Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Caneschi
authors.affiliation: Istituto per la Microelettronica e Microsistemi, Institute for Microelectronics and Microsystems, National Research Council (IMM-CNR) Strada VIII n. 5, 95121, Catania, Italy.
authors.forename: Raffaella
authors.initials: R
authors.lastname: Lo Nigro
authors.affiliation: Dipartimento di Scienze Chimiche, Università degli Studi di Catania, INSTM UdR di Catania 95125, Catania, Italy.
authors.forename: Emanuele
authors.initials: E
authors.lastname: Smecca
authors.affiliation: Dipartimento di Scienze Chimiche, Università degli Studi di Catania, INSTM UdR di Catania 95125, Catania, Italy.
authors.forename: Guglielmo G
authors.initials: GG
authors.lastname: Condorelli
authors.affiliation: Dipartimento di Scienze Chimiche, Università degli Studi di Catania, INSTM UdR di Catania 95125, Catania, Italy.
authors.forename: Graziella
authors.initials: G
authors.lastname: Malandrino
keywords: ferromagnetism; manganites; metal-organic chemical vapor deposition (MOCVD); perovskites; thin films