论文标题
具有PD和PT插入层的基于CO/Ni的多层的磁性
Magnetic properties of Co/Ni-based multilayers with Pd and Pt insertion layers
论文作者
论文摘要
在这项研究中，PD和PT插入层在CO/NI多层（MLS）中的影响对其磁性特性，例如研究了磁各向异性，饱和磁化，训练性，磁性域的大小和库里温度。我们比较了三个系列[CO/Ni/X] N mL系统（X = PD，PT，无插入层），改变了单个CO层厚度以及重复数N。对于不同的CO层厚度，所有三个系统的行为都非常相似。对于所有系统，对于CO层厚度在0.15 nm至0.25 nm之间的MLS均达到了最大有效的磁各向异性。从平面外到平面系统的过渡发生在约0.4 nm的Co.中。而[CO（0.2 nm）/Ni（0.4 nm）] N MLS将其首选的易于磁化轴从平面外到平面重复后6 Bilayer重复后，PD和PT插入超过15次的插入。对于PT和PD的[CO/Ni] 3到275和186 kJ/m3的最大有效磁各向异性从105 kJ/m3翻了一番。此外，插入层强烈降低了1100 ka/m的CO/Ni mls的初始饱和磁化，并将Curie温度从720降低至约500 K
In this study, the influence of Pd and Pt insertion layers in Co/Ni multilayers (MLs) on their magnetic properties, e.g. magnetic anisotropies, saturation magnetization, coercivity, magnetic domain size, and Curie temperature, is investigated. We compare three series of [Co/Ni/X]N ML systems (X = Pd, Pt, no insertion layer), varying the individual Co layer thickness as well as the repetition number N. All three systems behave very similarly for the different Co layer thicknesses. For all systems, a maximum effective magnetic anisotropy was achieved for MLs with a Co layer thickness between 0.15 nm and 0.25 nm. The transition from an out-of-plane to an in-plane system occurs at about 0.4 nm of Co. While [Co(0.2 nm)/Ni(0.4 nm)]N MLs change their preferred easy magnetization axis from out-of-plane to in-plane after 6 bilayer repetitions, insertion of Pd and Pt results in an extension of this transition beyond 15 repetitions. The maximum effective magnetic anisotropy was more than doubled from 105 kJ/m3 for [Co/Ni]3 to 275 and 186 kJ/m3 for Pt and Pd, respectively. Furthermore, the insertion layers strongly reduce the initial saturation magnetization of 1100 kA/m of Co/Ni MLs and lower the Curie temperature from 720 to around 500 K
