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

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

doi:10.1063/1.4850533

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

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

ENG - Electronic Engineering

Research output: Contribution to journal › Article › peer-review

14 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 language	English
Article number	242418
Journal	Applied Physics Letters
Volume	103
Issue number	24
DOIs	https://doi.org/10.1063/1.4850533
Publication status	Published - 2013 Dec 9

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Temperature-dependent perpendicular magnetic anisotropy of Co-Pt on Cr 2O3 antiferromagnetic oxide",

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.",

author = "T. Nozaki and M. Oida and T. Ashida and N. Shimomura and M. Sahashi",

note = "Funding Information: This work was supported in part by a Grant-in-Aid (Kakenhi No. 24760262) from the Japan Society for the Promotion of Science (JSPS) and the ALCA program of the Japan Science and Technology Agency (JST). Copyright: Copyright 2014 Elsevier B.V., All rights reserved.",

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doi = "10.1063/1.4850533",

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T1 - Temperature-dependent perpendicular magnetic anisotropy of Co-Pt on Cr 2O3 antiferromagnetic oxide

AU - Nozaki, T.

AU - Oida, M.

AU - Ashida, T.

AU - Shimomura, N.

AU - Sahashi, M.

N1 - Funding Information: This work was supported in part by a Grant-in-Aid (Kakenhi No. 24760262) from the Japan Society for the Promotion of Science (JSPS) and the ALCA program of the Japan Science and Technology Agency (JST). Copyright: Copyright 2014 Elsevier B.V., All rights reserved.

PY - 2013/12/9

Y1 - 2013/12/9

N2 - 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.

AB - 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.

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ER -

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

Abstract

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