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CEMs and Faraday rotation study of ¿-Fe2O3- Fe3O4films obtained by a new pyrolisis technique

By Joan Antoni Cusidó Fàbregas, Xavier Obradors Berenguer, Josep Fontcuberta, Antonio Isalgue Buxeda, Fernando Canal Bienzobas, Jean C. Joubert and M. Langlet

Abstract

Thin film iron oxides prepared by a new pyrolisis technique are studied by means of CEM spectroscopy and Faraday rotation measurements. It is shown that Fe3O4spinel oxides are obtained when the deposition is performed under Ar atmosphere. These spinel-ferrite films present an important magnetization component perpendicular to the film plane. It is also shown that the Fe3O4films are converted to ¿-Fe2O3by oxidation in air while retaining a uniaxial magnetic anisotropy. We interpret this induced magnetic anisotropy as arising from a magnetoelastic coupling with the substrate. Faraday rotation hysteresis loops confirm the existence of a strong induced uniaxial magnetic anisotropy in these films.Peer ReviewedPostprint (published version

Topics: Àrees temàtiques de la UPC::Enginyeria de la telecomunicació, Pyrolysis, Electromagnetism, Electron spectroscopy, Magnetic measurements, Piròlisi, Electromagnetisme
Year: 1987
DOI identifier: 10.1109/TMAG.1987.1064780
OAI identifier: oai:upcommons.upc.edu:2117/89203
Journal:

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