金纳米盘/铁石榴石异质结中法拉第效应的特性
Peculiarities of the Faraday effect in gold-nanodisk/iron-garnet heterostructures
摘要：
本文从实验和理论两方面研究了金纳米粒子在磁介质中的浸没问题。三个样品与周期性阵列的Au圆柱体进行了研究：磁性介电膜的表面上的颗粒，内部的磁性膜和直接下的磁性膜。最大的LSPR介导的法拉第旋转共振增强发生的情况下的纳米粒子浸没在磁膜。在所考虑的配置中，纳米颗粒的最佳位置是在磁介质表面下6 nm深。结果表明，法拉第旋转增强的最大影响是由纳米天线之间的介质的磁性。实验结果与数值分析吻合较好。
英文摘要：
In this paper, matters considering the immersion of gold nanoparticles inside a magnetic medium are investigated experimentally and theoretically. Three samples with periodic arrays of Au cylinders where studied: particles on a surface of the magnetic dielectric film, inside the magnetic film and directly under the magnetic film. The largest LSPR mediated Faraday rotation resonance enhancement takes place for the case of the nanoparticles submerged inside the magnetic film. Optimal place for nanoparticles is under the magnetic medium surface at 6 nm deep in the considered configurations. It is shown that the most influence on the Faraday rotation enhancement is produced by the magnetic properties of the medium between the nanoantennas. The experimental results are in good agreement with the numerical analysis.
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