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Iron-oxide films were grown by reactive pulsed laser deposition (PLD) from a metallic Fe target in a controlled oxygen environment. Films of /spl gamma/-Fe/sub 2/O/sub 3/ grew epitaxially on MgO with an iron-deficient stoichiometry. The saturation magnetization was 400/spl plusmn/19 kA/m. The Faraday rotation was 1.9 deg//spl mu/m at 645 nm, and the absorption coefficient varied between 4 and 30 /spl mu/m/sup -1/ in the wavelength range of 300-2000 nm. The properties are compared to those of /spl gamma/-Fe/sub 2/O/sub 3/ grown by PLD from an oxide target.
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Ilievski et al. (2003) studied this question.
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