Investigation on the microstructure and magnetic properties of FePt films prepared by sequentially sputtering

详细信息	查看全文 | 推荐本文 |

• 作者：LuRan Zhang^a ; Zhenghua Li^a ; Xi Liu^a ; Jianmin Bai^a ; Satoru Yoshimura^b ; Hitoshi Saito^b ; Fulin Wei^a ; ^{weifl@lzu.edu.cn}
• 关键词：Magnetic materials ; Texture ; Thin films
• 刊名：Materials Letters
• 出版年：2012
• 期刊代码：59_0167577x
• 类别：ms
• 出版时间：15 July, 2012
• 卷：79
• 期：Complete
• 页码：235-237
• 文件大小：358 K

摘要

The FePt films were deposited with [Fe/Pt]_n multilayer structure on preheated glass substrate by sequentially sputtering Fe and Pt layer in a magnetron sputtering system. The dependence of FePt's texture and magnetic properties on the multilayer structure was investigated. The XRD patterns indicate that FePt (111) texture are dominant for all [Fe/Pt]_n multilayer films. However, the magnetic hysteresis (M-H) loops show that the samples with n = 16 and 20 exhibit an obvious perpendicular anisotropy. The X-ray photoelectron spectroscopy (XPS) measurement results indicate that there are composition interfaces in the films. According to the micromagnetics simulation, it is concluded that the enhanced perpendicular magnetic anisotropy originates from the interface anisotropy, owing to the existence of the composition interfaces in the films.