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首页> 外文期刊>Journal of Applied Physics >Enhanced Magneto-optical Kerr Effect In Magnetic Multilayers Containing Double-negative Metamaterials
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Enhanced Magneto-optical Kerr Effect In Magnetic Multilayers Containing Double-negative Metamaterials

机译：含双负超材料的磁性多层膜中增强的磁光克尔效应

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摘要

The magneto-optical Kerr effects in magnetic multilayered structures containing double-negative metamaterials are investigated by using 4×4 transfer-matrix method. The azimuth rotations and the figure of merit of the magneto-optical effects are calculated as a function of the thickness, permeability, and permittivity of the layers. It is shown that the magneto-optical effects are not only enhanced largely for the present system in comparison with those in the magnetic multilayered structures containing general metal materials but a giant Kerr rotation near 90° is also observed when the thickness of the sample is far less than the resonant wavelength. The physical origination for such a phenomenon is also analyzed. This means that we can obtain large magneto-optical Kerr effects at very thin magnetic film by using the double-negative metamaterials, which benefit the application in magnetic-optical recording.
机译：采用4×4转移矩阵方法研究了含双负超材料的多层磁性结构中的磁光克尔效应。根据层的厚度，磁导率和介电常数计算磁光效应的方位角旋转和品质因数。结果表明，与包含普通金属材料的磁性多层结构相比，本系统不仅大大提高了磁光效应，而且当样品厚度较厚时，还观察到90°附近的巨大Kerr​​旋转。小于共振波长。还分析了这种现象的物理原因。这意味着我们可以通过使用双负超材料在非常薄的磁性膜上获得较大的磁光Kerr效应，这有利于在磁光记录中的应用。

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  • 来源
    《Journal of Applied Physics》 |2009年第5期|439-443|共5页
  • 作者

    Yunxia Dong; Xiangdong Zhang;

  • 作者单位

    Department of Physics, Beijing Normal University, Beijing 100875, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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