Structural and magnetic properties of [Fe/Ni]N multilayers

Jia Tang, Bin Ma, Zong Zhi Zhang, Qing Yuan Jin

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[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.

Original languageEnglish (US)
Article number077502
JournalChinese Physics Letters
Issue number7
StatePublished - Jul 2010


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