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arxiv 1406.1859 v1 pith:MPJT4PEP submitted 2014-06-07 cond-mat.mes-hall

Interface-dependent magnetotransport properties for thin Pt films on ferrimagnetic Y3Fe5O12

classification cond-mat.mes-hall
keywords y3fe5o12filmstemperatureferrimagneticfilmhallmagnetotransportobserved
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We have studied magnetoresistance and Hall effects for 1.8-nm-thick Pt films grown on a ferrimagnetic insulator Y3Fe5O12 in a wide temperature (0.46-300 K) and magnetic-field (-15-15 T) region. In the low-temperature regime where quantum corrections to conductivity are observed, weak antilocalization behavior observed in Pt films is critically suppressed when the film is attached to Y3Fe5O12. Hall resistance in the Pt film is also affected by Y3Fe5O12, and it exhibits logarithmic temperature dependence in a broad temperature range. The magnetotransport properties in the high-field range are significantly influenced by the interface between Pt and Y3Fe5O12.

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