Synthesis of orthorhombic rare-earth manganite thin films by a novel chemical solution route

• Type: Article in International Scientific Journal
• Date: 2011

Authors

Romaguera Barcelay, Y (Author) Other; Agostinho A Moreira (Author) FCUP; Gonzalez Aguilar, G (Author) Other; Almeida, A (Author) FCUP; Araujo, JP (Author) FCUP; Perez P de la Cruz (Author) FCUP

Journal

Title: Journal of Electroceramics

Vol. 26

Pages: 44-55

ISSN: 1385-3449

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 14 Citations

Scopus - 17 Citations

Scientific classification

FOS: Engineering and technology > Materials engineering

Other information

Authenticus ID: P-002-QRC

DOI: 10.1007/s10832-010-9626-3

Abstract (EN): A novel and general chemical solution route for processing high-quality transition metal and rare-earth orthorhombic manganite thin films on Pt(111)/Ti/SiO2/Si substrates was reported. The precursor solutions decomposition process of the manganites was studied by TG and DTA techniques, showing the formation of the phase above 650A degrees C in LaMnO3 and 750A degrees C in both EuMnO3 and DyMnO3 thin films. X-ray diffraction and Raman spectroscopic analysis reveal the formation of a pure orthorhombic structure, with a space group Pbnm, in LaMnO3, EuMnO3 and DyMnO3 thin films annealed at temperatures above the TG phase formation temperature observed. Microstructure and grain morphology of the films were analyzed by SEM and AFM techniques, showing a progressive improvement of the films structures with the increase of the annealing temperature. The temperature dependence of the magnetic response of the LaMnO3, EuMnO3 and DyMnO3 thin films show typical transition temperatures, compared with those reported for lanthanum, europium and dysprosium manganite single crystals and ceramics.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12