Magnetic properties of compositionally modulated Nd-Co thin films.
Magnetic properties of compositionally modulated Nd-Co thin films.
复制标题
成分调制 Nd-Co 薄膜的磁性。
DOI：
10.3379/jmsjmag.10.279
复制
发表时间：
1986
影响因子：
--
通讯作者：
N. Koshizuka
中科院分区：
文献类型：
--
作者：
Y. Suzuki;H. Masuda;T. Shibata;N. Koshizuka
通过特高压蒸发制备了一系列成分调制的 Nd-Co 薄膜。分别通过X射线衍射测量和能量色散X射线微量分析研究了薄膜的调制结构和成分。使用振动样品磁力计在 77 K 至室温之间的温度范围内进行磁化和各向异性测量。在调制长度Λ范围内发现了相干结构，范围为20 A≤Λ≤70 A。原子比为Nd:Co=1:3的薄膜的磁化强度随Λ的变化略有变化，但垂直各向异性能量随着Λ的增加而显着降低。各向异性能量的降低似乎是由于邻近 Nd 和 Co 层之间界面的原子数量减少所致。
A series of compositionally modulated Nd-Co thin films was prepared by UHV evaporation. The modulated structure and composition of the films were studied by X-ray diffraction measurement and energy dispersive X-ray microanalysis, respectively. Magnetization and anisotropy measurements were carried out using a vibrating sample magnetometer in the temperature range between 77 K and room temperature. A coherent structure was found over the modulation length, Λ, range 20 A ≤ Λ ≤ 70 A. The magnetization of the films with an atomic ratio of Nd : Co=1 : 3 changed slightly with Λ, but the perpendicular anisotropy energy decreased significantly with increasing Λ. The reduction of the anisotropy energy seems to be due to a decrease in the amount of atoms which are adjacent to the interfaces between Nd and Co layers.