g、Ti底层对[Fe/Pt]n多层膜磁性的影响
Effect of Ag and Ti underlayers on the magnetic properties of the Fe/Pt multilayer film
利用磁控溅射的方法，在热玻璃基片上制备了以Ag或Ti为底层的[Fe/Pt]n多层膜，然后经不同温度真空热处理，得到L10有序结构的FePt薄膜（L10-FePt）。实验结果表明：以Ag或Ti做底层，并利用[Fe/Pt]n多层膜结构制备FePt薄膜，可以促进L10-FePt薄膜有序化过程，使其有序化温度由500 降低到350℃。以Ag和Ti为底层的[Fe/Pt]n多层膜，经400℃退火20 min后，平行膜面的矫顽力分别达到597 kA/m和645 kA/m，剩磁比分别为0.81和0.94，适合于L10-FePt薄膜用于未来超高密度磁记录介质。以Ag为底层的[Fe/Pt]n多层膜，退火后其平行膜面矫顽力随退火温度的升高而增大；以Ti为底层的[Fe/Pt]n多层膜，退火后其平行膜面矫顽力先随退火温度的升高而增大，在高于500℃退火时，矫顽力下降。
he Fe/Pt multilayer films with an Ag or Ti underlayer were deposited on the heated glass substrates by magnetron sputtering, and the FePt films with L10 ordering phase (L10-FePt) were obtained after the as-deposited samples were subjected to vacuum annealing at various temperatures. Results demonstrate that the FePt films with Fe/Pt multilayer structure and an Ag or Ti underlayer can effectively prompt the ordering process and reduce the ordering temperature of L10-FePt films from 500℃ to 350℃. After annealed at 400℃ for 20 min, the in-plane coercivity HC of Ag / [Fe/Pt]13 and Ti / [Fe/Pt]13 films can be as high as 597 kA/m and 645 kA/m respectively, and the ratio of remance magnetization to saturation magnetization can reach 0.81 and 0.94, which are implied to be suitable for the future magnetic recording media with ultrahigh density. Ag and Ti underlayers have different effect on the magnetic performance of the FePt film. As to Ag / [Fe/Pt]13 films, the Hc is enhanced by increasing
于广华、冯春、李宝河、滕蛟
材料科学金属学、热处理
L10-FePt薄膜 有序化温度 底层 多层膜结构
L10-FePt thin films，ordering temperature，underlayer，multilayer structure
于广华,冯春,李宝河,滕蛟.g、Ti底层对[Fe/Pt]n多层膜磁性的影响[EB/OL].(2005-07-13)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/200507-106.点此复制
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