Experimental demonstration of tunable negative phase velocity and negative refraction in a ferromagnetic/ferroelectric composite metamaterial | |
Hongjie Zhao ; Lei Kang ; Ji Zhou ; Qian Zhao ; Longtu Li ; Liang Peng ; Yang Bai | |
2010-10-12 ; 2010-10-12 | |
关键词 | Experimental/ barium compounds composite materials ferroelectric materials ferromagnetic materials magnetoelectric effects metamaterials permittivity refraction refractive index strontium compounds yttrium compounds/ tunable negative phase velocity negative refraction ferromagnetic-ferroelectric composite metamaterial tunable left-handed transmission yttrium iron garnet rods barium strontium titanate rods refractive index permittivity magnetoelectric composite Y/sub 3/Fe/sub 5/O/sub 12/-(BaSr)TiO/sub 3// A7780 Ferroelectricity and antiferroelectricity A7550D Ferromagnetism of nonmetals A7820D Optical constants and parameters (condensed matter) A7720 Dielectric permittivity A7580 Magnetomechanical and magnetoelectric effects, magnetostriction/ Y3Fe5O12BaSrTiO3/ss Fe5O12/ss TiO3/ss O12/ss Fe5/ss O3/ss Y3/ss Ba/ss Fe/ss Sr/ss Ti/ss O/ss Y/ss |
中文摘要 | A tunable left-handed transmission is demonstrated experimentally in a ferromagnetic/ferroelectric composite metamaterial (CMM) consisting of an array of yttrium iron garnet (YIG) rods combined with barium strontium titanate (BST) rods. We observed a passband in the CMM within the overlap of the stop bands of YIG rods alone and BST rods alone. Both measured phase velocity and refractive index of the CMM are shown to be negative at the relevant frequency range. The frequency showing left handedness can be adjusted continuously, dynamically, and reversibly by an applied magnetic field with a sensitive response of 3.5 GHz/kOe. |
语种 | 英语 |
出版者 | American Institute of Physics ; USA |
内容类型 | 期刊论文 |
源URL | [http://hdl.handle.net/123456789/78245] |
专题 | 清华大学 |
推荐引用方式 GB/T 7714 | Hongjie Zhao,Lei Kang,Ji Zhou,et al. Experimental demonstration of tunable negative phase velocity and negative refraction in a ferromagnetic/ferroelectric composite metamaterial[J],2010, 2010. |
APA | Hongjie Zhao.,Lei Kang.,Ji Zhou.,Qian Zhao.,Longtu Li.,...&Yang Bai.(2010).Experimental demonstration of tunable negative phase velocity and negative refraction in a ferromagnetic/ferroelectric composite metamaterial.. |
MLA | Hongjie Zhao,et al."Experimental demonstration of tunable negative phase velocity and negative refraction in a ferromagnetic/ferroelectric composite metamaterial".(2010). |
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