Magneto-optic properties in hydrogenated bimetallic films

We study magneto-optic Kerr effect measurements of thin Fe, Fe-Pd and hydrogenated Fe-Pd films. Fe films exhibit theoretically predicted hysteresis loops of a ferromagnetic material. Bimetallic Fe-Pd films yield some interesting differences. Pd coated films with a thickness greater than 200 A have n...

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Bibliographic Details
Published in:Physica Status Solidi (b) (Germany) 2001-06, Vol.230 (2), p.359-362
Main Authors: Araya-Pochet, J, Gonzalez-Hernandez, F, Saavedra-Arias, J
Format: Article
Language:English
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Summary:We study magneto-optic Kerr effect measurements of thin Fe, Fe-Pd and hydrogenated Fe-Pd films. Fe films exhibit theoretically predicted hysteresis loops of a ferromagnetic material. Bimetallic Fe-Pd films yield some interesting differences. Pd coated films with a thickness greater than 200 A have no Kerr signals. Bimetallic 128 A Fe-100 A Pd layers present modified hysteresis loops presumably related to the linear dependence of the magneto-optical signals on the applied magnetic field in non magnetic material. The hydrogenated bimetallic films do not present major changes in the coercivity force observed in non-covered Fe films. A brief description of the technique including a discussion of factors that affect the sensitivity is presented. The studied films were magnetized under an in-plane applied field of up to 6.3 kOe.
ISSN:0370-1972