Magnetically tunable Mie resonance-based dielectric metamaterials.
Magnetically tunable Mie resonance-based dielectric metamaterials.
复制标题
基于米氏共振的磁可调介电超材料
DOI:
10.1038/srep07001
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发表时间:
2014-11-11
影响因子:
4.6
通讯作者:
Zhou J
中科院分区:
文献类型:
--
作者:
Bi K;Guo Y;Liu X;Zhao Q;Xiao J;Lei M;Zhou J
Electromagnetic materials with tunable permeability and permittivity are highly desirable for wireless communication and radar technology. However, the tunability of electromagnetic parameters is an immense challenge for conventional materials and metamaterials. Here, we demonstrate a magnetically tunable Mie resonance-based dielectric metamaterials. The magnetically tunable property is derived from the coupling of the Mie resonance of dielectric cube and ferromagnetic precession of ferrite cuboid. Both the simulated and experimental results indicate that the effective permeability and permittivity of the metamaterial can be tuned by modifying the applied magnetic field. This mechanism offers a promising means of constructing microwave devices with large tunable ranges and considerable potential for tailoring via a metamaterial route.
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