Magnetic Properties of Epitaxial Discontinuous Fe/MgO Multilayers

• Type: Article in International Scientific Journal
• Date: 2012

Authors

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

Journal

Title: Journal of Nanoscience and Nanotechnology

Vol. 12

Pages: 7505-7509

ISSN: 1533-4880

Publisher: American Scientific Publishers

Indexing

ISI Web of Knowledge - 1 Citation

Scopus - 1 Citation

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5