Large-area hard magnetic L10-FePt and composite L10-FePt based nanopatterns
Large-area hard magnetic L10-FePt and composite L10-FePt based nanopatterns
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DOI：
10.1002/pssa.201329017
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发表时间：
2013-07-01
影响因子：
2
通讯作者：
Bublat, Thomas
中科院分区：
文献类型：
--
作者：
Goll, Dagmar;Bublat, Thomas
具有规则排列的极硬磁性纳米点的位图案介质是下一代超高密度磁记录的非常有前景的概念，可实现 1Tbitsin(-2) 甚至更高的存储密度。为了实现传统写入头的可写性，切换过程可以是热、微波或畴壁辅助的。本文主要研究大面积硬磁L1(0)-FePt 和复合材料L1(0)-FePt 颗粒和位图案介质的制造和表征。在微磁学的框架内，从切换场的温度依赖性和角度依赖性来分析不同类型纳米点的磁反转机制。[图形](C) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Bit-patterned media with a regular arrangement of extremely hard magnetic nanodots is a very promising concept for next generation ultrahigh density magnetic recording to realize storage densities of 1Tbitsin(-2) and far beyond. To enable writeability with conventional writing heads the switching process may be thermally, microwave or domain-wall assisted. This paper concentrates on the fabrication and characterization of large-area hard magnetic L1(0)-FePt and composite L1(0)-FePt based granular and bit-patterned media. Within the framework of micromagnetism the magnetic reversal mechanism of different types of nanodots is analyzed from the temperature dependence and angular dependence of the switching field.[GRAPHICS](C) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim