Structural and magnetic characterization of LaSrMnO3 thin films deposited by laser ablation on MgO substrates

• Tipo: Artigo em Revista Científica Internacional
• Data: 2010

Autores

gomes, i. t. (Autor) Outra; almeida, b. g. (Autor) Outra; lopes, a. m. l. (Autor) Outra; araujo, j. p. (Autor) FCUP; barbosa, j. (Autor) Outra; mendes, j. a. (Autor) Outra

Revista

Título: Journal of Magnetism and Magnetic Materials

Vol. 322 Nº 9-12

Páginas: 1174-1177

ISSN: 0304-8853

Editora: Elsevier

Indexação

ISI Web of Knowledge - 13 Citações

Scopus - 13 Citações

Outras Informações

ID Authenticus: P-003-72C

DOI: 10.1016/j.jmmm.2009.06.072

Abstract (EN): La2/3Sr1/3MnO3-delta thin films were deposited by laser ablation on MgO substrates under low oxygen pressure cool down. Their structural and magnetic properties are presented. The magnetic and electrical resistivity measurements indicate a reduction of the Curie and the metal-insulator transition temperatures due to the formation of magnetic inhomogeneneous films, where clusters of a metallic phase are mixed in a magnetically disordered insulating matrix. By a low-angle X-ray reflectivity study we show that the thin films are chemically inhomogeneous with an oxygen deficiency in bulk of the film when compared with the film/air interfacial region.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4