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arXiv 0908.4443cond-mat.mtrl-scicond-mat.other
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磁性薄膜中传导电流的微波屏蔽:在带状线宽带FMR中的应用

Microwave screening by conduction currents in thin magnetic films: application in stripline broadband FMR

M. Kostylev, K. J. Kennewell, R. Magaraggia, R. L. Stamps, M. Ali, B. J. Hickey

摘要:

利用微带换能器研究了双层导电磁性膜中的铁磁共振。结果表明,通过有限厚度引起的双层膜中涡流的不均匀性增强,可以实现自旋驻波的激发或抑制。这种效应在厚度低于磁趋肤深度的薄膜中是可以观察到的,并且可以用于研究异质结构中的自旋驻波模式。

英文摘要:

Ferromagnetic resonance in conducting magnetic bilayers was studied using microstrip transducers. It was found that excitation or suppression of standing spin waves could be achieved through enhanced inhomogeneity of eddy currents in the bilayer caused by finite thickness. This effect is observable in films with thicknesses below the magnetic skin depth and can be used to study standing spin wave modes in heterostructures.

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