Ferromagnetic Resonance in Exchange-Coupled NiFe/FeMn Films and Its Control
Ferromagnetic Resonance in Exchange-Coupled NiFe/FeMn Films and Its Control
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DOI：
10.1109/tmag.2012.2201925
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发表时间：
2012-10
影响因子：
2.1
通讯作者：
Shaojie Hu;K. Kiseki;S. Yakata;T. Kimura
中科院分区：
文献类型：
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作者：
Shaojie Hu;K. Kiseki;S. Yakata;T. Kimura
研究了交换耦合nfe /FeMn/Cu三层体系的静态和动态磁化性能。虽然在磁化与磁场曲线中观察到明显的环路位移，但交换偏置的大小并不显示出对Cu厚度的系统依赖。另一方面，从铁磁共振测量中发现，交换偏置随着铜厚度的增加而增加。结果表明，铜的厚度可以控制谐振频率。讨论了矫顽力与阻尼常数的关系。
The static and dynamic magnetization properties in an exchange-coupled NiFe/FeMn/Cu trilayer system have been investigated. Although a clear loop shift was observed in the magnetization versus field curve, the magnitude of the exchange bias does not show a systematic dependence on the Cu thickness. On the other hand, from the ferromagnetic resonance measurements, the exchange bias is found to increase with increasing the Cu thickness. This result indicates that the resonant frequency can be controlled by the Cu thickness. The correlation between the coercivity and the damping constant is also discussed.