Interaction between ferromagnetic/antiferromagnetic systems across a common antiferromagnetic spacer
Interaction between ferromagnetic/antiferromagnetic systems across a common antiferromagnetic spacer
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DOI：
10.1063/1.1624479
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发表时间：
2003-11
影响因子：
3.2
通讯作者：
C. Leung;M. Blamire
中科院分区：
文献类型：
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作者：
C. Leung;M. Blamire
尽管最近有大量的研究，但反铁磁体和铁磁体之间的交换偏置的许多方面仍然不清楚。一个主要的悬而未决的问题是交换偏置和铁磁层中的增强双折射率之间的关系。使用三层铁磁体/反铁磁体/铁磁体结构沉积和测量在特定的场条件下，我们表明，在反铁磁体，保持交换偏置在一个接口的微磁结构是充分随机的，在其他接口，没有净偏置是可检测的，但它确实保持了增强的磁性能。
Many aspects of exchange bias between antiferromagnets and ferromagnets remain unclear despite substantial recent research. A principal outstanding issue is the relationship between exchange bias and enhanced coercivity in the ferromagnetic layer. Using a trilayer ferromagnet/antiferromagnet/ferromagnet structure deposited and measured under specific field conditions, we demonstrate that the micromagnetic structure in the antiferromagnet which maintains exchange bias at one interface is sufficiently randomized at the other interface that no net bias is detectable, but it does maintain enhanced coercivity.