通过模板化固态去湿制备的有序FePdCu纳米岛阵列。
Ordered FePdCu nanoisland arrays made by templated solid-state dewetting.
作者信息
Krupinski M, Perzanowski M, Zarzycki A, Zabila Y, Marszałek M
机构信息
Institute of Nuclear Physics Polish Academy of Sciences, Radzikowskiego 152, 31-342 Kraków, Poland.
出版信息
Nanotechnology. 2015 Oct 23;26(42):425301. doi: 10.1088/0957-4484/26/42/425301. Epub 2015 Sep 30.
Ordered FePdCu nanoisland arrays were formed by annealing at 600 °C, which caused solid state dewetting of [Cu/Fe/Pd] multilayers deposited on self-assembled SiO2 nanospheres with a size of 100 nm. A single FePdCu island was formed on the top of each SiO2 nanosphere. The structure of the obtained system was studied by x-ray diffraction (XRD), while its magnetic properties were studied by SQUID magnetometry. A partially ordered L10 alloy appeared in the annealed films, leading to magnetic hardening of the material. The paper presents the influence of the patterning on the system properties. It is shown that templated dewetting is a method providing nanoislands with well-controlled sizes and positions. The role of copper admixture in controlling the structural and magnetic properties is also discussed.
通过在600°C下退火形成有序的FePdCu纳米岛阵列，这导致沉积在尺寸为100nm的自组装SiO2纳米球上的[Cu/Fe/Pd]多层膜发生固态去湿。在每个SiO2纳米球顶部形成单个FePdCu岛。通过X射线衍射（XRD）研究所得系统的结构，同时通过超导量子干涉仪磁力测定法研究其磁性能。退火后的薄膜中出现了部分有序的L10合金，导致材料的磁硬化。本文介绍了图案化对系统性能的影响。结果表明，模板化去湿是一种能够提供尺寸和位置可控的纳米岛的方法。还讨论了铜添加剂在控制结构和磁性能方面的作用。
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