Tailor-made nano-structured materials for perpendicular recording media and head—precise control of direct/indirect exchange coupling
Tailor-made nano-structured materials for perpendicular recording media and head—precise control of direct/indirect exchange coupling
复制标题
用于垂直记录介质和磁头的定制纳米结构材料——直接/间接交换耦合的精确控制
DOI:
10.1016/j.jmmm.2008.05.008
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发表时间:
2009
影响因子:
2.7
通讯作者:
S. Saito
中科院分区:
文献类型:
--
作者:
M. Takahashi;M. Tsunoda;S. Saito
Tailor-made nano-structured spin materials obtained by precisely controlled nano-scale fabrication technologies for use in ultra-high density hard disk drives (HDDs), as well as an understanding of their nanomagnetics, are essential from the view point of materials, processes, and physics. Artificial control of the exchange coupling among ferromagnetic layers through the RKKY interaction (indirect) and direct exchange coupling represented as the exchange bias at the ferromagnetic (FM)/antiferromagnetic (AFM) interface are of great interest and have received significant attention to induce new modulated spin structures in conventional simple FM materials. In particular, soft magnetic under layer (SUL) with strong synthetic antiferromagnetic (SAF) coupling between two adjacent soft magnetic layers, exchange coupled stacked media introducing exchange coupling between FM layers and giant exchange anisotropy at the FM/AFM interface have attracted significant attention from the view point of applications. Within the framework of the present paper, we discuss future technical trends for SUL, granular media and the spin-valve head from the viewpoint of direct and/or indirect exchange coupling based on our recent results.
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DOI:
--
发表时间:
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期刊:
Applied Physics Letters 89
影响因子:
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作者:
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DOI:
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发表时间:
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影响因子:
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