Electronic Structure and Magnetic Properties of Fe/Cr Superlattices

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• 作者：Haiquan Hu ; Hengshuai Li ; Shouxin Cui ; Wenjun Wang
• 关键词：Electronic structure ; Magnetic properties ; Density functional theory
• 刊名：Acta Physico-Chimica Sinica
• 出版年：2007
• 出版时间：June 2007
• 年：2007
• 卷：23
• 期：6
• 页码：846-850
• 全文大小：464 K

文摘

The electronic structure and magnetic properties of Fe_m/Cr_n (m=3, 4; n=1, 3, 4) superlattice were studied using the density functional full-potential linearized augmented plane-wave (FLAPW) method. The results showed that the ferromagnetic coupling existed for the adjacent Fe layers in the Fe₃/Cr₁ and Fe₃/Cr₃ superlattices and the antiferromagnetic coupling existed for Fe₄/Cr₄ superlattice in the ground state. The magnetic moments of Cr atoms changed direction from layer to layer, and an antiferromagnetic coupling between Fe and Cr at the interfacial layer could be observed.