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Magneto‐Optic Properties in Hydrogenated Bimetallic Films
Author(s) -
ArayaPochet J.,
GonzálezHernández F.,
SaavedraArias J.
Publication year - 2002
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200204)230:2<359::aid-pssb359>3.0.co;2-6
Subject(s) - bimetallic strip , coercivity , materials science , kerr effect , hysteresis , ferromagnetism , condensed matter physics , thin film , magnetic hysteresis , magnetic field , film plane , yield (engineering) , magnetization , nuclear magnetic resonance , analytical chemistry (journal) , composite material , nanotechnology , metallurgy , magnetic anisotropy , chemistry , metal , physics , nonlinear system , quantum mechanics , chromatography
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 Å have no Kerr signals. Bimetallic 128 Å Fe–100 Å 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.