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    題名: Element-specific magnetic properties of the epitaxial NiFe/Cr/NiFe trilayers
    作者: Lee, I. F.;Shen, M. Y.;Lay, Y. Y.;Jan, J. C.;Chiou, J. W.;Tsai, H. M.;Pong, W. F.;Tsai, M. H.;Hsieh, H. H.;Lin, H. J.;Lee, J. F.;Ku, C. A.;Huang, J. C. A.
    貢獻者: 淡江大學物理學系
    日期: 2003-05-05
    上傳時間: 2009-12-31 10:21:29 (UTC+8)
    出版者: College Park: American Institute of Physics (AIP)
    摘要: Ni and Fe L3,2-edge magnetic circular dichroism (MCD) and Cr K-edge x-ray absorption near-edge structure measurements have been performed for the Py/Cr(tCr)/Py (Py=Ni80Fe20) trilayers with tCr=5, 10, 15, 20, and 25 Å. The MCD asymmetry ratios in the Ni and Fe L3-edges spectra are found strongly affected by the thickness of the Cr layer. The moments of the Fe and Ni 3d states are found, respectively, to decrease and increase suddenly when tCr increases beyond 20 Å. The measured magneto-optical Kerr effect hysteresis loops show a ferromagnetic-to-antiferromagnetic phase transition at about the same Cr-layer thickness. The transition of the magnetic property is found to correlate with the structural transition of the Cr spacer layer from a pseudomorphic fcc-like structure to a bcc structure.
    關聯: Applied Physics Letters 82(18), pp.3062-3064
    DOI: 10.1063/1.1563743
    顯示於類別:[物理學系暨研究所] 期刊論文


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