arXiv 1510.024002015-10-15cond-mat.mtrl-sci

超过10 Tb/in $^2$的位图案化介质的热辅助磁纪录

Heat assisted magnetic recording of bit patterned media beyond 10 Tb/in$^2$

Christoph Vogler, Claas Abert, Florian Bruckner, Dieter Suess, Dirk Praetorius

DOI：: 10.1063/1.4943629

摘要：

热辅助磁纪录（HAMR）所能达到的面存储密度的极限仍然是一个悬而未决的问题。我们想解决这个中心问题，并提出了一个可能的位图案化介质的面存储密度高于10 Tb/in $^2$的设计。该模型使用硬磁纪录颗粒与5 nm的直径和10 nm的高度。它假设了底层材料的居里温度的真实分布以及晶粒尺寸和晶粒位置的真实分布。为了计算的面密度，我们分析了详细的切换行为的记录位在不同的外部条件下，这允许计算的误码率的记录过程（叠瓦和传统）为不同的晶粒间距和写头位置。因此，我们能够优化所提出的介质的面密度。

英文摘要：

The limits of the areal storage density as can be achieved with heat assisted magnetic recording (HAMR) are still an open issue. We want to address this central question and present the design of a possible bit patterned medium with an areal storage density above 10 Tb/in$^2$. The model uses hard magnetic recording grains with 5 nm diameter and 10 nm height. It assumes a realistic distribution of the Curie temperature of the underlying material as well as a realistic distribution of the grain size and the grain position. In order to compute the areal density we analyze the detailed switching behavior of a recording bit under different external conditions, which allows to compute the bit error rate of a recording process (shingled and conventional) for different grain spacings and write head positions. Hence, we are able to optimize the areal density of the presented medium.

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摘要：

英文摘要：

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