CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Structural and Magnetic Properties of [Fe/Ni]N Multilayers |
TANG Jia, MA Bin, ZHANG Zong-Zhi, JIN Qing-Yuan |
Key Lab of Advanced Photonic Materials and Devices, Laboratory of Advanced Materials and Department of Optical Science and Engineering, Fudan University, Shanghai 200433 |
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Cite this article: |
TANG Jia, MA Bin, ZHANG Zong-Zhi et al 2010 Chin. Phys. Lett. 27 077502 |
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Abstract [Fe/Ni]N multilayered structure grows epitaxially on the single crystalline MgO substrate. Due to the different directions of magnetic easy axes of Fe and Ni and the strong strain, large anisotropy dispersion is assumed. According to the layer model, the magnetization of Fe and Ni layers cannot follow each easy axis because of exchange coupling, and then the anisotropies are averaged out. The reduction of the effective anisotropy enhances with the decrease of periodic thickness. Thus, the coercivity of [Fe/Ni]N multilayers reduces with decreasing periodic thickness.
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Keywords:
75.70.Cn
75.30.Gw
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Received: 11 March 2010
Published: 28 June 2010
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PACS: |
75.70.Cn
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(Magnetic properties of interfaces (multilayers, superlattices, heterostructures))
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75.30.Gw
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(Magnetic anisotropy)
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