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Chinese Physics, 2004, Vol. 13(11): 1951-1956    DOI: 10.1088/1009-1963/13/11/034
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Green's function formalism in semi-infinite composites: an investigation of local field distribution

Li Chen (李琛), Gu Ying (古英), Dai Bing (戴冰), Gong Qi-Huang (龚旗煌)
State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China
Abstract  In the resonant composites, the formerly developed Green's function formalism (GFF) can be used to compute the local field distribution near resonance. In this paper, we extend the GFF in the infinite network to the semi-infinite networks by the method of image. Using the formalism, we investigate the local field distribution near resonance for the impurity clusters with admittance ε_0 embedded in one semi-infinite network with ε_1. With varying the admittance ε_2 of another semi-infinite network, we find that the local fields in the boundary experience great changes, especially at ε_2=-ε_1. The existence of the boundary enhances the localization of the fields within and around the metallic clusters. Therefore, the intensity of local field is influenced by the arrangement of impurity metallic bonds and its distance from the boundary.
Keywords:  response to electromagnetic fields      composites  
Received:  27 April 2004      Revised:  09 June 2004      Accepted manuscript online: 
PACS:  02.30.-f (Function theory, analysis)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 10304001, 10334010, 10328407 and 90101027). The work was also supported by the special fund from Ministry of Science and Technology of China, the National Key Basic Research

Cite this article: 

Li Chen (李琛), Gu Ying (古英), Dai Bing (戴冰), Gong Qi-Huang (龚旗煌) Green's function formalism in semi-infinite composites: an investigation of local field distribution 2004 Chinese Physics 13 1951

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