Influence of initial growth layer and Ti underlayer on magnetic properties and recording characteristics of very thin films of evaporated Co-Cr media
Influence of initial growth layer and Ti underlayer on magnetic properties and recording characteristics of very thin films of evaporated Co-Cr media
复制标题
初始生长层和 Ti 底层对蒸发 Co-Cr 介质极薄膜的磁性能和记录特性的影响
DOI：
10.1109/20.24498
复制
发表时间：
1989
影响因子：
2.1
通讯作者：
Mikio Suzuki
中科院分区：
文献类型：
--
作者：
O. Kitakami;Y. Ogawa;H. Fujiwara;Fumio Kugiya;Mikio Suzuki
直接沉积在衬底上的Co-Cr膜具有低介电常数的初始生长层。然而，Ti底层的存在阻止了这种层的形成。结果，即使在极薄的膜厚度（200 AA）的情况下，沉积在Ti底层上的Co-Cr膜也具有高的垂直各向异性和垂直度。对于Co-Cr薄膜介质的读写特性来说，这种初始生长层的存在大大提高了再现输出水平。其原因被认为是，由于初始生长层的存在，出现在垂直记录层的背表面上的自由电荷减少，并且作用于记录磁化的退磁场随后减小。>
A Co-Cr film deposited directly on a substrate has an initial growth layer with low coercivity. However, the existence of a Ti underlayer prevents the formation of such a layer. As a result, Co-Cr film deposited on a Ti underlayer has high perpendicular anisotropy and coercivity even in cases of extremely thin film thickness (200 AA). As for the read-write characteristics of Co-Cr thin-film media, the existence of such an initial growth layer greatly improves the reproduced output level. The cause for this is considered to be that the free charges which appear on the back surface of the perpendicular recording layer are reduced and the demagnetization field acting on the recorded magnetization subsequently decreases due to the existence of the initial growth layer. >