Magnetic Properties of Epitaxial Discontinuous Fe/MgO Multilayers

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Garcia Garcia, A (Autor) Outra; Pardo, JA (Autor) Outra; Strichovanec, P (Autor) Outra; Magen, C (Autor) Outra; Vovk, A (Autor) Outra; De Teresa, JM (Autor) Outra; G.N. Kakazei (Autor) REIT; pogorelov, y. g. (Autor) FCUP; Golub, V (Autor) Outra; Salyuk, O (Autor) Outra; Morellon, L (Autor) Outra; Algarabel, PA (Autor) Outra; Ibarra, MR (Autor) Outra

Revista

Título: Journal of Nanoscience and Nanotechnology

Vol. 12

Páginas: 7505-7509

ISSN: 1533-4880

Editora: American Scientific Publishers

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 1 Citação

Outras Informações

ID Authenticus: P-002-623

DOI: 10.1166/jnn.2012.6548

Abstract (EN): We report magnetic, dynamic and transport properties of discontinuous metal-insulator multilayers Fe/MgO grown on amorphous Corning (R) glass and single-crystalline MgO (001) substrates. The films of structure Substrate/MgO (3 nm)/[Fe (0.6 nm)/MgO (3.0 nm)] x 10 were prepared in ultra-high vacuum conditions using Pulsed Laser Deposition. It was shown that conditions of epitaxial growth are favorable for MgO substrates. As a result a substantial increase of tunneling magnetoresistance caused by spin-filtering effect was observed and reasonably theoretically explained. The value of TMR similar to 9.2% at room temperature in 18 kOe magnetic field is three times higher comparing to that for the samples grown on Corning (R) glass substrates.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5