Magnetic anisotropic properties of Pd/Co/Pd trilayer films studied by X-ray absorption spectroscopy and magnetic circular dichroism

K. Saravanan; C. H. Kao; Y. C. Shao; Y. F. Wang; B. Y. Wang; H. T. Wang; C. J. Tsai; W. C. Lin; C. W. Pao; H. M. Tsai; L. Y. Jang; H. J. Lin; J. F. Lee; W. F. Pong

doi:10.1039/c4ra15683h

Magnetic anisotropic properties of Pd/Co/Pd trilayer films studied by X-ray absorption spectroscopy and magnetic circular dichroism

K. Saravanan, C. H. Kao, Y. C. Shao, Y. F. Wang, B. Y. Wang^*, H. T. Wang, C. J. Tsai, W. C. Lin, C. W. Pao, H. M. Tsai, L. Y. Jang, H. J. Lin, J. F. Lee, W. F. Pong

^*Corresponding author for this work

Department of Physics

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

10 Citations (Scopus)

Abstract

We study the magnetic anisotropic properties of as-grown and annealed Pd/Co/Pd trilayer films based on their atomic and electronic structures using extended X-ray absorption fine structure (EXAFS), X-ray absorption near edge structure (XANES) spectroscopy and magnetic circular dichroism (XMCD) measurements. The annealed film exhibits interesting perpendicular magnetic anisotropy (PMA) whereas the as-grown film exhibits in-plane anisotropy. Cross-sectional transmission electron microscopic analysis together with the Co K-edge EXAFS results confirm the formation of an ordered-alloy CoPd phase in the annealed film, whereas the as-grown film has an hcp Co-like phase. Co L_3,2-edge XMCD measurements reveal an enhanced ratio of the Co 3d orbital to spin moments of the annealed film providing evidence of the observed PMA upon annealing.

Original language	English
Pages (from-to)	19014-19019
Number of pages	6
Journal	RSC Advances
Volume	5
Issue number	25
DOIs	https://doi.org/10.1039/c4ra15683h
Publication status	Published - 2015

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

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Saravanan, K., Kao, C. H., Shao, Y. C., Wang, Y. F., Wang, B. Y., Wang, H. T., Tsai, C. J., Lin, W. C., Pao, C. W., Tsai, H. M., Jang, L. Y., Lin, H. J., Lee, J. F., & Pong, W. F. (2015). Magnetic anisotropic properties of Pd/Co/Pd trilayer films studied by X-ray absorption spectroscopy and magnetic circular dichroism. RSC Advances, 5(25), 19014-19019. https://doi.org/10.1039/c4ra15683h

@article{1e3eef760a494b6eabf6cd4a84b294ec,

title = "Magnetic anisotropic properties of Pd/Co/Pd trilayer films studied by X-ray absorption spectroscopy and magnetic circular dichroism",

abstract = "We study the magnetic anisotropic properties of as-grown and annealed Pd/Co/Pd trilayer films based on their atomic and electronic structures using extended X-ray absorption fine structure (EXAFS), X-ray absorption near edge structure (XANES) spectroscopy and magnetic circular dichroism (XMCD) measurements. The annealed film exhibits interesting perpendicular magnetic anisotropy (PMA) whereas the as-grown film exhibits in-plane anisotropy. Cross-sectional transmission electron microscopic analysis together with the Co K-edge EXAFS results confirm the formation of an ordered-alloy CoPd phase in the annealed film, whereas the as-grown film has an hcp Co-like phase. Co L3,2-edge XMCD measurements reveal an enhanced ratio of the Co 3d orbital to spin moments of the annealed film providing evidence of the observed PMA upon annealing.",

author = "K. Saravanan and Kao, {C. H.} and Shao, {Y. C.} and Wang, {Y. F.} and Wang, {B. Y.} and Wang, {H. T.} and Tsai, {C. J.} and Lin, {W. C.} and Pao, {C. W.} and Tsai, {H. M.} and Jang, {L. Y.} and Lin, {H. J.} and Lee, {J. F.} and Pong, {W. F.}",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2015.",

year = "2015",

doi = "10.1039/c4ra15683h",

language = "English",

volume = "5",

pages = "19014--19019",

journal = "RSC Advances",

issn = "2046-2069",

publisher = "Royal Society of Chemistry",

number = "25",

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T1 - Magnetic anisotropic properties of Pd/Co/Pd trilayer films studied by X-ray absorption spectroscopy and magnetic circular dichroism

AU - Saravanan, K.

AU - Kao, C. H.

AU - Shao, Y. C.

AU - Wang, Y. F.

AU - Wang, B. Y.

AU - Wang, H. T.

AU - Tsai, C. J.

AU - Lin, W. C.

AU - Pao, C. W.

AU - Tsai, H. M.

AU - Jang, L. Y.

AU - Lin, H. J.

AU - Lee, J. F.

AU - Pong, W. F.

PY - 2015

Y1 - 2015

N2 - We study the magnetic anisotropic properties of as-grown and annealed Pd/Co/Pd trilayer films based on their atomic and electronic structures using extended X-ray absorption fine structure (EXAFS), X-ray absorption near edge structure (XANES) spectroscopy and magnetic circular dichroism (XMCD) measurements. The annealed film exhibits interesting perpendicular magnetic anisotropy (PMA) whereas the as-grown film exhibits in-plane anisotropy. Cross-sectional transmission electron microscopic analysis together with the Co K-edge EXAFS results confirm the formation of an ordered-alloy CoPd phase in the annealed film, whereas the as-grown film has an hcp Co-like phase. Co L3,2-edge XMCD measurements reveal an enhanced ratio of the Co 3d orbital to spin moments of the annealed film providing evidence of the observed PMA upon annealing.

AB - We study the magnetic anisotropic properties of as-grown and annealed Pd/Co/Pd trilayer films based on their atomic and electronic structures using extended X-ray absorption fine structure (EXAFS), X-ray absorption near edge structure (XANES) spectroscopy and magnetic circular dichroism (XMCD) measurements. The annealed film exhibits interesting perpendicular magnetic anisotropy (PMA) whereas the as-grown film exhibits in-plane anisotropy. Cross-sectional transmission electron microscopic analysis together with the Co K-edge EXAFS results confirm the formation of an ordered-alloy CoPd phase in the annealed film, whereas the as-grown film has an hcp Co-like phase. Co L3,2-edge XMCD measurements reveal an enhanced ratio of the Co 3d orbital to spin moments of the annealed film providing evidence of the observed PMA upon annealing.

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JF - RSC Advances

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ER -

Magnetic anisotropic properties of Pd/Co/Pd trilayer films studied by X-ray absorption spectroscopy and magnetic circular dichroism

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