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

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

10 引文 斯高帕斯(Scopus)

摘要

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.

原文英語
頁(從 - 到)19014-19019
頁數6
期刊RSC Advances
5
發行號25
DOIs
出版狀態已發佈 - 2015

ASJC Scopus subject areas

  • 一般化學
  • 一般化學工程

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