Influence of Fe cap layer on the structural and magnetic properties of Fe49Pt51/Fe bi-layers |
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| Authors: | Duan Chao-Yang Ma Bin Wei Fu-Lin Zhang Zong-Zhi and Jin Qing-Yuan |
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| Institution: | Research Institute of Magnetic Materials, Lanzhou
University, Lanzhou 730000, China; State Key Laboratory for Advanced Photonic
Materials and Devices, and Department of Optical Science and
Engineering, Fudan
University, Shanghai 200433, China |
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| Abstract: | The influences of an Fe cap layer on the structural and magnetic
properties of FePt/Fe bi-layers are investigated. Compared with
single FePt alloy films, a thin Fe layer can affect the crystalline
orientation and improve the chemical ordering of L10 FePt
films. Moreover, the coercivity increases when a thin Fe layer
covers the FePt layer. Beyond a critical thickness, however, the
Fe cover layer quickens the magnetization reversal of
Fe49Pt51/Fe bi-layers by their exchange coupling. |
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| Keywords: | Fe cap layer L10 FePt magnetism |
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