摘要
用磁控溅射技术制备了系列Ｆｅ／Ｔｉ纳米多层膜，周期调制在２２—２４０ｎｍ：用透射电镜和小角、高角Ｘ射线衍射分别研究了样品的结构；用振动样品磁强计和Ｍｏｓｓｂａｕｅｒ谱研究了样品的磁性．发现铁层厚度在２ｎｍ附近时存在铁磁性面心立方γ－Ｆｅ，样品的易磁化方向平行于膜面；随调制周期增大，样品的饱和磁化强度增加，矫顽力下降且与结晶状态有关．
A series of Fe/Ti periodical nano-miltilayers was prepared by DC-magnetron sputtering. The modulation period is between 2.2 and 24 nm. The structure of the specimens was examined by TEM and small-or high-angle X-ray diffraction technique. Their magnetism was also studied by the vibratory sample magnetometer and Mossbauer spectrum. The face-centred cubic Fe was found in multilayers containing thinner Fe layers nearby 2 nm. The saturation magnetization increases and the coercivity decreases with increasing modulation period.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1996年第1期85-90,共6页
Acta Metallurgica Sinica
基金
国家自然科学基金
