Magnetic properties and microstructure of L10-FePt/AlN perpendicular nanocomposite films
Magnetic properties and microstructure of L10-FePt/AlN perpendicular nanocomposite films
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DOI：
10.1063/1.3639289
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发表时间：
2011-09
影响因子：
3.2
通讯作者：
C. Feng;E. Zhang;C. Xu;Ning Li;Yong Jiang;Guang-Hua Yu;Baohe Li
中科院分区：
文献类型：
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作者：
C. Feng;E. Zhang;C. Xu;Ning Li;Yong Jiang;Guang-Hua Yu;Baohe Li
基于MgO（100）衬底与非磁性AlN化合物的界面操控，设计并制备了L10-FePt/AlN垂直纳米复合薄膜。系统的磁性和微结构的薄膜的研究表明，MgO衬底控制的FePt晶格的晶体取向和诱导垂直磁各向异性（PMA）。AlN化合物有助于控制岛的生长模式，并作为FePt岛的隔离物钉扎FePt域的网站，导致操纵的磁性和磁交换相互作用的薄膜。通过适当降低薄膜厚度或提高衬底温度，优化了薄膜的PMA。
Based on interfacial manipulation of a MgO (100) substrate and non-magnetic AlN compound, L10-FePt/AlN perpendicular nanocomposite films were designed and prepared. Systematic studies on magnetic properties and microstructure of the films show that the MgO substrate controls crystal orientation of the FePt lattice and induces perpendicular magnetic anisotropy (PMA). The AlN compound helps to control the island growth mode and acts as isolators of FePt islands to pin the sites of FePt domains, resulting in manipulation of coercivity and magnetic exchange interaction of the films. Moreover, PMA of the film was optimized by appropriately decreasing film thickness or increasing substrate temperature.