Anomaly of AC resistance in magnetic nanoparticle alloys at spin-glass-like transition

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dc.creatorPakhomov, A. B.
dc.creatorDenardin, J. C.
dc.creatorKnobel, M.
dc.creatorde Lima, O. F.
dc.date1999-11-25
dc.date2000-02-24
dc.date.accessioned2026-07-07T03:15:18Z
dc.date.available2026-07-07T03:15:18Z
dc.description(withdrawn) A combined study of magnetic susceptibility and AC resistance was performed on melt-spun Cu-Co granular magnetic ribbons. The AC resistance as a function of temperature has a sharp maximum. We associate it with a diverging correlation length at the temperature of collective freezing of magnetic moments via increasing magnetic losses in the induced non-uniform field. Application of this model to the experimental data allows a direct determination of the critical exponent of correlation length on both sides of the transition. Giant AC magnetoresistance is observed at the freezing temperature.
dc.descriptionThis paper has been withdrawn by the authors, as some results were not confirmed in later experiments
dc.identifierhttps://arxiv.org/abs/cond-mat/9911414
dc.identifierhttp://arxiv.org/abs/cond-mat/9911414
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/29977
dc.subjectMaterials Science
dc.subjectDisordered Systems and Neural Networks
dc.titleAnomaly of AC resistance in magnetic nanoparticle alloys at spin-glass-like transition
dc.typetext

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