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Giant Magnetoresistance at the Interface of Iron Thin Films

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arxiv cond-mat/0011491 v1 pith:G6IL7AML submitted 2000-11-29 cond-mat.mtrl-sci

Giant Magnetoresistance at the Interface of Iron Thin Films

classification cond-mat.mtrl-sci
keywords interfacemagnetoresistancefieldgiantgranularmagneticalignementsbehavior
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Ag/Fe/Ag and Cr/Fe/Cr trilayers with a single $25 nm$ thick ferromagnetic layer exhibit giant magnetoresistance (GMR) type behavior. The resistance decreases for parallel and transversal magnetic field alignements with a Langevin-type magnetic field dependence up to B=12 T. The phenomenon is explained by a granular interface structure. Results on Fe/Ag multilayers are also interpreted in terms of a granular interface magnetoresistance.

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