Abstract
We demonstrated the micromagnetic simulation of magnetic duplication for perpendicular magnetic recording (PMR) media. The magnetization distributions of the PMR media duplicated by edge printing (EP) and bit printing (BP) were investigated. The dependence of duplication characteristics on the duplication field was also estimated. An AC erase state in the off-track region appeared for a strong duplication field in EP. The dependence of the duplication characteristics on the duplication field we found in this study is in agreement with that calculated by macroscopic-magnetization analysis in a previous report. Although the intergrain exchange constant has almost not influence on the duplication characteristics in EP, the duplication characteristics in BP are improved as the intergrain exchange constant increases.
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