DocumentCode :
3216939
Title :
Artificial permeability and antibonding magnetic resonance in a copper-structured metamaterial with symmetry-broken ring-plate resonators
Author :
Wang, Yuan-Kai ; Dong, Z.G. ; Zhai, Yujia
Author_Institution :
Dept. of Phys., Southeast Univ., Nanjing, China
fYear :
2010
fDate :
14-16 Oct. 2010
Firstpage :
500
Lastpage :
501
Abstract :
Metallic metamaterials with magnetic resonance have attracted a lot of interest during the passed decades due to their potential applications on realizing artificial magnetism from zero frequency to optical spectrum. Since nonmagnetic natural materials, such as Cu, are lack of magnetic response at microwave frequencies, magnetic metamaterials usually contain a resonant structure to provide artificial permeability. As for the resonator, various structures such as split ring and cut-wire pair, were proposed to explore the resonant magnetic properties with paramagnetic or diamagnetic response in similar to natural magnetic materials. In previous work we calculated the transmission spectra and effective permeability of a double square ring of Cu and observed the antibonding magnetic response (i.e., a pair of antiparallel magnetic dipolar moments for each double-ring unit cell). Such an antibonding magnetic resonance is interesting not only for its transient magnetic moments distribution just like an oscillation version of the static antiferromagnetism, but also for its Fano-type resonance. In this paper, we simplify the double-ring to a ring-plate structure, and investigate the modified artificial permeability for this antibonding magnetic resonance by introducing asymmetric geometry.
Keywords :
crystal structure; light transmission; magnetic moments; magnetic permeability; magnetic resonance; metamaterials; resonators; antibonding magnetic resonance; antibonding magnetic response; antiparallel magnetic dipolar moments; artificial magnetism; artificial permeability; asymmetric geometry; copper-structured metamaterial; double-ring unit cell; effective permeability; metallic metamaterials; nonmagnetic natural materials; optical spectrum; ring-plate structure; static antiferromagnetism; symmetry-broken ring-plate resonators; transmission spectra; Geometry; Magnetic resonance;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vacuum Electron Sources Conference and Nanocarbon (IVESC), 2010 8th International
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-6645-0
Type :
conf
DOI :
10.1109/IVESC.2010.5644237
Filename :
5644237
Link To Document :
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