中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Prolongation structures and exact solutions of K(m, n) equations

文献类型:期刊论文

作者Wang, DS ; Lou, SY
刊名JOURNAL OF MATHEMATICAL PHYSICS
出版日期2009
卷号50期号:12
关键词NONLINEAR EVOLUTION-EQUATIONS COMPACTONS SOLITON
ISSN号0022-2488
通讯作者Wang, DS (reprint author), Cent Univ Finance & Econ, CEMA, Beijing 100081, Peoples R China.
中文摘要The essence of the chemical mechanism for surface-enhanced resonance Raman scattering (SERRS) is the charge transfer (CT) between the metal and the molecule at the resonant electronic transition, which results in the mode-selective enhancement in the SERRS spectrum. The site-orientated CT can directly interpret the mode-selective chemical enhancement in SERRS. However, it is a great challenge to intutively visualize the orientation and site of the CT. In this paper, for the pyrazine-Au-2 complex, a three-dimensional (3D) cubic representation is built to provide direct visual evidence for chemical mechanisms of SERRS via CT from the Au-2 cluster to pyrazine at the resonant electronic transition. The relationship between the mode-selective enhancements in SERRS and the site-orientated CT was clearly revealed. The intracluster excitation (analog of plasmon excitation in large naonoparticles) was also visualized by the 3D cubic presentation, which provided the direct evidence of local electromagnetic field enhancement of SERRS. To study the quantum size effect and the coupling effect of the nanoparticles, the photoexcitation mechanisms of the Au-20 - pyrazine complex and the Au-20 - pyrazine - Au-20 junction were also investigated. The tunneling charge transfer from one Au-20 cluster to another Au-20 cluster outside the pyrazine in Au-20 - pyrazine - Au-20 junction was also revealed visually. The calculated normalized extinction spectra of Au nanoparticles using the generalized Mie theory reveal that the resonance peak is red-shifted due to the coupling between particles. Copyright (C) 2009 John Wiley & Sons, Ltd.
收录类别SCI
资助信息National Natural Science Foundation of China [10735030, 90503006]; National Basic Research Programme of China [2007CB814800]; Specialized Research Fund for the Doctoral Programme of Higher Education [20070248120]; Programme for Changjiang Scholars and Innovative Research Team in University (PCSIRT) [IRT0734]
语种英语
公开日期2013-09-24
源URL[http://ir.iphy.ac.cn/handle/311004/51510]  
专题物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式
GB/T 7714
Wang, DS,Lou, SY. Prolongation structures and exact solutions of K(m, n) equations[J]. JOURNAL OF MATHEMATICAL PHYSICS,2009,50(12).
APA Wang, DS,&Lou, SY.(2009).Prolongation structures and exact solutions of K(m, n) equations.JOURNAL OF MATHEMATICAL PHYSICS,50(12).
MLA Wang, DS,et al."Prolongation structures and exact solutions of K(m, n) equations".JOURNAL OF MATHEMATICAL PHYSICS 50.12(2009).

入库方式: OAI收割

来源:物理研究所

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