Micro magnetic structure of magnetic clusters in CoCrTaPtB recording media

Micro magnetic structure of magnetic clusters in CoCrTaPtB recording media
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CoCrTaPtB记录介质中磁簇的微磁结构

DOI：
10.1016/s0304-8853(01)00502-9
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Kobayashi Kazuo
Kobayashi Kazuo
中科院分区：
--
文献类型：
--
作者：
H. Takahoshi;S. Ishio;H. Saito;Kobayashi Kazuo

文献摘要

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用磁力显微镜和LLG模拟研究了HC&GT；3kOe掺杂的CoCrTaPtB记录介质的微观磁结构。观察到两种类型的特征磁结构。一种是收敛型磁结构，表现为BIT上的局域磁团簇。另一种是涡旋结构，它负责记录比特的填充。这些微磁结构导致了高密度记录中的介质噪声，必须通过调整矫顽力Hc和晶间相互作用来抑制这些微磁结构，以探索高密度记录介质。
Micro magnetic structure in CoCrTaPtB recording media with Hc>3kOe was studied by magnetic force microscope and LLG simulation. Two types of the characteristic magnetic structure were observed. One is the convergent-type magnetic structure, which is observed as localized magnetic cluster on bit. The other is the vortex structure, which is responsible for the recording bit peroration. These micro magnetic structures cause the medium noise in high-density recording and must be suppressed by adjusting coercive force Hcand inter-granular interaction to explore high density recording media.