扩展的Maxwell Garnett理论对金球文石的表征
Characterization of golden vaterite by the extended Maxwell Garnett formalism
摘要：
用扩展的Maxwell Garnett公式实现了浸渍有金纳米颗粒的球霰石的均匀化。扩展的形式主义考虑到球霰石的固有各向异性以及纳米颗粒的大小，形状和取向。尺寸依赖的介电常数用于金纳米颗粒。数值研究表明，均质化复合材料的介电常数参数对金纳米颗粒的尺寸、形状、取向和体积分数非常敏感。
英文摘要：
The homogenization of vaterite impregnated with gold nanoparticles was accomplished using the extended Maxwell Garnett formalism. The extended formalism takes into account the intrinsic anisotropy of vaterite as well as the size, shape, and orientation of the nanoparticles. Size-dependent permittivity was used for the gold nanoparticles. Numerical studies revealed that the homogenized composite material's permittivity parameters are acutely sensitive to the size, shape, orientation, and volume fraction of the gold nanoparticles.
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