Storage layer, as a part of a double-layer perpendicular magnetic medium, plays an important role in a recording process [1]. However, to simplify a model, magnetic properties of the storage layer have been frequently neglected in FEM calculations [2] where the storage layer was treated as a vacuum. Perpendicular media frequently employ an intergranular exchange coupling, which affects substantially media properties, for instance coercivity H{sub}C, nucleation H{sub}N and saturation H{sub}S fields, and slope of the MH-loop at a coercivity level [3]. The last parameter is closely related to a permeability of the storage layer μ{sub}(SL). An effect of the storage layer on the writability of perpendicular magnetic recording head was studied by micromagnetic and FEM modeling.
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机译：存储层作为双层垂直磁介质的一部分，在记录过程中起重要作用[1]。然而，为了简化模型，在FEM计算中经常忽略存储层的磁性[2]，其中将存储层被处理为真空。垂直介质经常采用晶间交换耦合，其影响基本上媒体特性，例如矫顽力H {Sub} C，Nucleation H {Sub} N和饱和H {Sub} S字段，以及矫顽力级别的MH环的斜率[3]。最后一个参数与存储层μ}}（SL）的渗透性密切相关。通过微磁性和有限元模拟研究了存储层对垂直磁记录头的可写性的影响。
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