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arXiv 1808.01296cond-mat.mes-hall
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磁性多层膜中层间相互作用类型的定义分析铁磁共振峰的形状

Definition of the interlayer interaction type in magnetic multilayers analyzing the shape of the ferromagnetic resonance peaks

O. G. Udalov, A. A. Fraerman, E. S. Demidov

摘要:

本文从理论上研究了两层耦合磁层系统中的铁磁共振现象。我们表明,层之间的相互作用导致所谓的法诺共振的发生。Fano共振改变了铁磁共振峰的形状。它引入了峰值不对称性。不对称类型由磁性层之间的相互作用的符号定义。因此,研究铁磁共振峰的形状可以定义层间耦合的类型(铁磁或反铁磁)。我们表明,使用数值模拟可以估计的相互作用的大小,通过拟合的非对称共振峰。

英文摘要:

We present theoretical study of ferromagnetic resonance in a system of two coupled magnetic layers. We show that an interaction between the layers leads to the occurrence of the so-called Fano resonance. The Fano resonance changes the shape of the ferromagnetic resonance peak. It introduces a peak asymmetry. The asymmetry type is defined by the sign of the interaction between the magnetic layers. Therefore, studying the shape of the ferromagnetic resonance peaks one can define the type of the interlayer coupling (ferromagnetic or antiferromagnetic). We show that using numerical simulations one can estimate a magnitude of the interaction by fitting the asymmetric resonance peaks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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