Element Specific Magnetic Anisotropy Energy of Alternately Layered FeNi Thin Films

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概要

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• The element specific magnetic anisotropy energy (MAE) of alternately layered FeNi thin films grown on Ni (4--20 MLs)/Cu(001) is investigated by means of the X-ray magnetic circular dichroism (XMCD) and magneto-optic Kerr effect (MOKE). Although surface Fe is known to show strong perpendicular magnetic anisotropy, the Ni-sandwiched Fe layer has a tiny MAE of $10\pm 40$ μeV. On the other hand, the Fe-sandwiched Ni layer has a positive MAE of $60\pm 30$ μeV. The total MAE simulated from the XMCD analysis shows good agreement with the MOKE result. We demonstrate that <i>in-situ</i> analysis of the element specific MAE gives a possible strategy for manipulating the magnetic anisotropy of multilayers.

• 2011-07-25

著者

• AMEMIYA Kenta

  Photon Factory and Condensed Matter Research Center, Institute of Materials Structure Science, High Energy Accelerator Research Organization

• Sakamaki Masako

  Photon Factory and Condensed Matter Research Center, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801, Japan

関連論文

• Element Specific Magnetic Anisotropy Energy of Alternately Layered FeNi Thin Films
• Near-Edge X-Ray Absorption Fine Structure Study of Vertically Aligned Carbon Nanotubes Grown by the Surface Decomposition of SiC

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