A review of L1₀ FePt films for high-density magnetic recording
by Jingsheng Chen, Chengjun Sun, Gan Moog Chow
International Journal of Product Development (IJPD), Vol. 5, No. 3/4, 2008

Abstract: In this paper, we have reviewed the current status of the study of L1₀ FePt alloy films for the application for ultra-high-density magnetic recording. For practical realisation of L1₀ FePt as recording media, issues such as decreasing preparation temperature, easy axis control, and reduction in media noise must be solved. The Ag-doping and strain-inducing methods are the most promising to lower the ordering temperature. However, the films using Ag-doping and strain-inducing method usually showed lower coercivity due to significant amount of defects in the film. Two methods, epitaxial growth and non-epitaxial growth, were introduced to control the easy axis and each method had its advantages and disadvantages. Media noise was also reduced by pinning method.

Online publication date: Tue, 11-Mar-2008

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