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16 Variation de la pente de magnétorésistance négativè a haut champ avec la température, p.90 ,
´ electrode spéculaire) et uné electrode métallique. L'asymétrie de diffusion dans le métal est celle observée expérimentalement (sous réserve que notre interprétation de Fe 3 O 4 soit valable) Elle est opposéè a celle attendue pour le permalloy, p.97 ,
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Ici le taux de réflection spéculaire dépend de la direction d'incidence de l'´ electron et de sa direction du spin, mais il ne dépend pas de la direction de l ,
Fe 3 O 4 dans la bicouche (perpendiculaire au plan) et résistivité (planaire) d'une piste de Fe 3 O 4, p.119 ,