本論文主要在探討CoCr-base 垂直式紀錄材料的磁性質與微結構的關係。首先藉由白金片來調整CoCrPt三元合金靶的計量比，並從XRD與磁滯曲線來判別白金的添加對CoCrPt織構與磁性質的影響。從實驗中發現白金含量的增加有助於垂直異向性的提升。
另外，在傳統CoCr合金垂直式記錄中，加入一層CrMoMn的擴散層，並施以後退火處理，則有助於鉻元素的偏析，並得到相當好的磁性質。然而高溫的後退火處理對傳統硬碟的製程似乎有不相容之處。
在本論文的最後部分，也探討了一些緩衝層對記錄層的影響。其中，Ti的緩衝層對CoCrPt垂直異向性的提升最為顯著。若在Ti的緩衝層下面再堆疊一層銅的種晶層，不僅使得矯頑場增加，飽和磁化量亦明顯的提升，我們推論此種現象是記錄層中晶粒細化的結果。

Magnetic properties and microstructure of CoCr-base perpendicular recording media are discussed in this research. At first, the stoichiometry of CoCrPt alloy is modulated by the additives, Platinum, to study its influence on CoCrPt magnetic properties and microstructure. From experiment results, suitable amount of Platinum can improve the perpendicular anisotropy.
Besides, an introduction of a CrMoMn diffusion layer can enhance the Chromium segregation by the annealing process and the magnetic properties are significantly improved. However, the high temperature annealing process is unsuitable for conventional disk manufacturing.
In the final part of this research, alternative buffer layers are also discussed. CoCrPt with Ta bufferlayer or Ti bufferlayer has their own unique characteristics. An introduction of Cu seedlayer underneath the CoCrPt/Ti perpendicular media not only promotes coercivity but also enhance the saturation magnetization. This may be due to the fine-grain sizes in the magnetic layer.

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