Optical and magnetic properties of γ-iron oxide made by reactive pulsed laser deposition

Author

Ilievski, Filip ; Tepper, T. ; Ross, C.A.

Author_Institution

Dept. of Mater. Sci. & Eng., MIT, Cambridge, MA, USA

Volume

39

Issue

5

fYear

2003

Firstpage

3172

Lastpage

3174

Abstract

Iron-oxide films were grown by reactive pulsed laser deposition (PLD) from a metallic Fe target in a controlled oxygen environment. Films of γ-Fe₂O₃ grew epitaxially on MgO with an iron-deficient stoichiometry. The saturation magnetization was 400±19 kA/m. The Faraday rotation was 1.9 deg/μm at 645 nm, and the absorption coefficient varied between 4 and 30 μm^-1 in the wavelength range of 300-2000 nm. The properties are compared to those of γ-Fe₂O₃ grown by PLD from an oxide target.

Keywords

Faraday effect; absorption coefficients; ferrimagnetic materials; iron compounds; magnetic thin films; magnetisation; pulsed laser deposition; γ-Fe₂O₃ films; 300 to 2000 nm; 645 nm; Faraday rotation; Fe₂O₃; absorption coefficient; controlled oxygen environment; iron-deficient stoichiometry. saturation magnetization; magnetic properties; metallic Fe target; optical properties; reactive pulsed laser deposition; Electromagnetic wave absorption; Iron; Magnetic films; Magnetic properties; Optical control; Optical films; Optical pulses; Optical saturation; Pulsed laser deposition; Saturation magnetization;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2003.816047

Filename

1233335