Ag层厚度对FePd薄膜的结构和磁性能的影响
Effect of thickness of Ag layer on the structure and magnetic properties of FePd films
作者：张艳丽(广西信息材料重点实验室；桂林电子科技大学材料科学与工程学院)；成钢(广西信息材料重点实验室；桂林电子科技大学材料科学与工程学院)；许小宗(桂林电子科技大学材料科学与工程学院)；李林(广西信息材料重点实验室；桂林电子科技大学材料科学与工程学院)；杜玉松(广西信息材料重点实验室；桂林电子科技大学材料科学与工程学院)；武小飞(广西信息材料重点实验室；桂林电子科技大学材料科学与工程学院)
Author：ZHANG Yan-Li(Guangxi Key Laboratory of Information Materials；School of Material Science and Engineering, Guilin University of Electronic Technology)；CHENG Gang(Guangxi Key Laboratory of Information Materials；School of Material Science and Engineering, Guilin University of Electronic Technology)；XU Xiao-Zong(School of Material Science and Engineering, Guilin University of Electronic Technology)；Li Lin(Guangxi Key Laboratory of Information Materials；School of Material Science and Engineering, Guilin University of Electronic Technology)；DU Yu-Song(Guangxi Key Laboratory of Information Materials；School of Material Science and Engineering, Guilin University of Electronic Technology)；WU Xiao-Fei(Guangxi Key Laboratory of Information Materials；School of Material Science and Engineering, Guilin University of Electronic Technology)
收稿日期：2016-11-21 年卷（期）页码：2018,55(3):609-612
期刊名称：四川大学学报: 自然科学版
Journal Name：Journal of Sichuan University (Natural Science Edition)
关键字：FePd薄膜; Ag层; 相转变; 矫顽力
Key words：FePd thin film; Ag layer; Phase transition; Coercivity
基金项目：国家自然科学基金（51261004）； 广西信息材料重点实验室项目（161008 Z）
中文摘要
采用磁控溅射的方法，在石英玻璃上制备了Agx/FePd(67.5nm)(x=3.875、7.75、15.50、31、38.75 nm)和FePd(67.5nm)/Agx(x=7.75、15.50、31nm)薄膜，研究了Ag对600℃退火不同时间的FePd/Ag、Ag/FePd薄膜的影响。结果显示，无论Ag沉积在FePd薄膜顶层还是底层，Ag层的加入都能加快薄膜从面心立方（FCC）到面心四方（FCT）的相转变。Ag能极大增强FePd薄膜的矫顽力。比较Ag/FePd和FePd/Ag薄膜，Ag/FePd薄膜中的部分样品有沿某一方向优先生长的趋势，更利于实际应用。在Ag/FePd薄膜中晶粒易磁化轴平行面内，当顶层Ag厚度为31nm时，薄膜有很大的面内矫顽力2.8kOe和很小的垂直方向矫顽力1.04kOe。
英文摘要
A series of FePd based alloy films were deposited on glass substrates by DC magnetron sputtering. In order to find the role of the Ag layer in disorder-order of FePd film, it was studied that the Ag layer effected on Agx/FePd(67.5nm)(x=3.875、7.75、15.50、31、38.75 nm) and FePd(67.5nm)/Agx(x=7.75、15.50、31nm) films annealed at 600℃ for different time. The results showed that the Ag layer could accelerate phase transition from FCC (face-centered cubic) to FCT (face-centered tetragonal) in films and greatly enhance the coercivity of FePd films. Compared Ag/FePd with FePd/Ag films, some samples of Ag/FePd films have highly preferred orientation. The magnetic easy axis of the crystallites in Ag/FePd film is in-plane of substrate. When the thickness of Ag toplayer is equal to 31 nm, the film has a very large in-plane coercivity of 2.8 kOe and a very low out-of-plane coercivity of 1.04 kOe.
【关闭】
