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	Experimental demonstration of tunable negative phase velocity and negative refraction in a ferromagnetic/ferroelectric composite metamaterial
	Zhao, Hongjie ; Kang, Lei ; Zhou, Ji ; Zhao, Qian ; Li, Longtu ; Peng, Liang ; Bai, Yang
	2010-05-10 ; 2010-05-10
关键词	barium compounds composite materials ferroelectric materials ferromagnetic materials magnetoelectric effects metamaterials permittivity refraction refractive index strontium compounds yttrium compounds INDEX METAMATERIALS PERMITTIVITY PERMEABILITY Physics, Applied
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 ; 英语
出版者	AMER INST PHYSICS ; MELVILLE ; CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/20683]
专题	清华大学
推荐引用方式 GB/T 7714	Zhao, Hongjie,Kang, Lei,Zhou, Ji,et al. Experimental demonstration of tunable negative phase velocity and negative refraction in a ferromagnetic/ferroelectric composite metamaterial[J],2010, 2010.
APA	Zhao, Hongjie.,Kang, Lei.,Zhou, Ji.,Zhao, Qian.,Li, Longtu.,...&Bai, Yang.(2010).Experimental demonstration of tunable negative phase velocity and negative refraction in a ferromagnetic/ferroelectric composite metamaterial..
MLA	Zhao, Hongjie,et al."Experimental demonstration of tunable negative phase velocity and negative refraction in a ferromagnetic/ferroelectric composite metamaterial".(2010).

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