Temperature-dependent perpendicular magnetic anisotropy of Co-Pt on Cr 2O3 antiferromagnetic oxide

T. Nozaki, M. Oida, T. Ashida, N. Shimomura, M. Sahashi

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11 Citations (Scopus)

Abstract

We clarify the origin of the interface perpendicular magnetic anisotropy (PMA) at the Cr2O3/ferromagnet interface by investigating the temperature dependence of the magnetic properties of Cr2O 3/Co-Pt. We observed positive large interface PMA both above and below the blocking temperature of Cr2O3, with the PMA being less sensitive to temperature. Our results indicate that the effect of the metal/oxide interface, as well as that of the MgO/CoFeB interface, contributes strongly to the PMA at the Cr2O3/Co-Pt interface, although the effect of perpendicular exchange coupling might also slightly contribute to the interface PMA.

Original languageEnglish
Article number242418
JournalApplied Physics Letters
Volume103
Issue number24
DOIs
Publication statusPublished - 2013 Dec 9

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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