Anomalous Field Dependence of Hall Resistivity in Fe/Cr Multilayers

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  • Sato Hideyuki
    Department of Physics, Tokyo Metropolitan University
  • Kumano Tadashi
    Department of Physics, Tokyo Metropolitan University
  • Aoki Yuji
    Department of Physics, Tokyo Metropolitan University
  • Kaneko Takeo
    Research Center for Advanced Science and Technology, University of Tokyo
  • Yamamoto Ryôichi
    Research Center for Advanced Science and Technology, University of Tokyo

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  • Anomalous Field Dependence of Hall Resi

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Abstract

We observed anomalous field dependence of Hall resistivity on Fe/Cr samples exhibiting large magnetoresistance. Hall resistivity of Fe(12.5)/Cr(12.5) shows a maximum near 2.3 T, above which it decreases 25%. The result was explained by the field-dependent decrease of the side-jump and skew scatterings in these samples. We also observed a clear correlation between the layer periodicity dependence of negative magnetoresistance and anomalous Hall resistivity in lower fields.

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