Multiple in-plane spin reorientation transitions in Fe/CoO bilayers grown on vicinal MgO(001)

Q. Li; T. Gu; J. Zhu; Z. Ding; J. X. Li; J. H. Liang; Y. M. Luo; Z. Hu; C. Y. Hua; H. J. Lin; T. W. Pi; C. Won; Y. Z. Wu

doi:10.1103/PhysRevB.91.104424

Multiple in-plane spin reorientation transitions in Fe/CoO bilayers grown on vicinal MgO(001)

Q. Li, T. Gu, J. Zhu, Z. Ding, J. X. Li, J. H. Liang, Y. M. Luo, Z. Hu, C. Y. Hua, H. J. Lin, T. W. Pi, C. Won, Y. Z. Wu

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27 Citations (Scopus)

Abstract

Step-induced antiferromagnetic (AFM) uniaxial anisotropy and its effects on the exchange coupling have been systematically investigated in the epitaxial Fe/CoO bilayers on a MgO(001) vicinal surface. X-ray magnetic linear dichroism measurements proved that the atomic steps induced a strong in-plane AFM uniaxial anisotropy in the CoO film. We found that the thermal activation induced in-plane 90° switching of CoO AFM in-plane spins. The competition among the step-induced AFM anisotropy, the interface exchange coupling, and thermal activation generate a novel multiple in-plane spin reorientation transition of the Fe magnetization, which can further provide new insights on the exchange coupling in FM/AFM systems.

Original language	English
Article number	104424
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	91
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.91.104424
Publication status	Published - 25 Mar 2015

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© 2015 American Physical Society.

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10.1103/PhysRevB.91.104424

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title = "Multiple in-plane spin reorientation transitions in Fe/CoO bilayers grown on vicinal MgO(001)",

abstract = "Step-induced antiferromagnetic (AFM) uniaxial anisotropy and its effects on the exchange coupling have been systematically investigated in the epitaxial Fe/CoO bilayers on a MgO(001) vicinal surface. X-ray magnetic linear dichroism measurements proved that the atomic steps induced a strong in-plane AFM uniaxial anisotropy in the CoO film. We found that the thermal activation induced in-plane 90° switching of CoO AFM in-plane spins. The competition among the step-induced AFM anisotropy, the interface exchange coupling, and thermal activation generate a novel multiple in-plane spin reorientation transition of the Fe magnetization, which can further provide new insights on the exchange coupling in FM/AFM systems.",

author = "Q. Li and T. Gu and J. Zhu and Z. Ding and Li, {J. X.} and Liang, {J. H.} and Luo, {Y. M.} and Z. Hu and Hua, {C. Y.} and Lin, {H. J.} and Pi, {T. W.} and C. Won and Wu, {Y. Z.}",

note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society.",

year = "2015",

month = mar,

day = "25",

doi = "10.1103/PhysRevB.91.104424",

language = "English",

volume = "91",

journal = "Physical Review B - Condensed Matter and Materials Physics",

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T1 - Multiple in-plane spin reorientation transitions in Fe/CoO bilayers grown on vicinal MgO(001)

AU - Li, Q.

AU - Gu, T.

AU - Zhu, J.

AU - Ding, Z.

AU - Li, J. X.

AU - Liang, J. H.

AU - Luo, Y. M.

AU - Hu, Z.

AU - Hua, C. Y.

AU - Lin, H. J.

AU - Pi, T. W.

AU - Won, C.

AU - Wu, Y. Z.

PY - 2015/3/25

Y1 - 2015/3/25

N2 - Step-induced antiferromagnetic (AFM) uniaxial anisotropy and its effects on the exchange coupling have been systematically investigated in the epitaxial Fe/CoO bilayers on a MgO(001) vicinal surface. X-ray magnetic linear dichroism measurements proved that the atomic steps induced a strong in-plane AFM uniaxial anisotropy in the CoO film. We found that the thermal activation induced in-plane 90° switching of CoO AFM in-plane spins. The competition among the step-induced AFM anisotropy, the interface exchange coupling, and thermal activation generate a novel multiple in-plane spin reorientation transition of the Fe magnetization, which can further provide new insights on the exchange coupling in FM/AFM systems.

AB - Step-induced antiferromagnetic (AFM) uniaxial anisotropy and its effects on the exchange coupling have been systematically investigated in the epitaxial Fe/CoO bilayers on a MgO(001) vicinal surface. X-ray magnetic linear dichroism measurements proved that the atomic steps induced a strong in-plane AFM uniaxial anisotropy in the CoO film. We found that the thermal activation induced in-plane 90° switching of CoO AFM in-plane spins. The competition among the step-induced AFM anisotropy, the interface exchange coupling, and thermal activation generate a novel multiple in-plane spin reorientation transition of the Fe magnetization, which can further provide new insights on the exchange coupling in FM/AFM systems.

UR - http://www.scopus.com/inward/record.url?scp=84961289909&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.91.104424

DO - 10.1103/PhysRevB.91.104424

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VL - 91

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 10

M1 - 104424

ER -

Multiple in-plane spin reorientation transitions in Fe/CoO bilayers grown on vicinal MgO(001)

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