中国物理B ›› 1997, Vol. 6 ›› Issue (8): 589-596.doi: 10.1088/1004-423X/6/8/004

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ELECTRONIC SPECTRAL PROPERTIES OF ONE-DIMENSIONAL NANOSTRUCTURED SYSTEMS

张立德1, 颜晓红2, 段祝平3, 周益春3   

  1. (1)Institute of Solid State Physics, Academia Sinica, Hefei 230031, China; (2)Institute of Solid State Physics, Academia Sinica, Hefei 230031, China;Department of Physics, Xiangtan University, Xiangtan 411105, China; (3)Institute of Solid State Physics, Academia Sinica, Hefei 230031, China;Institute of Mechanics, Academia Sinica, Beijing 100080, China
  • 收稿日期:1996-08-07 出版日期:1997-08-20 发布日期:1997-08-20
  • 基金资助:
    Project supported by the fund for fundamental research in the National Climb Program of China.

ELECTRONIC SPECTRAL PROPERTIES OF ONE-DIMENSIONAL NANOSTRUCTURED SYSTEMS

YAN XIAO-HONG (颜晓红)ab, ZHANG LI-DE (张立德)a, DUAN ZHU-PING (段祝平)ac, ZHOU YI-CHUN (周益春)bc   

  1. a Institute of Solid State Physics, Academia Sinica, Hefei 230031, China; b Department of Physics, Xiangtan University, Xiangtan 411105, China; c Institute of Mechanics, Academia Sinica, Beijing 100080, China
  • Received:1996-08-07 Online:1997-08-20 Published:1997-08-20
  • Supported by:
    Project supported by the fund for fundamental research in the National Climb Program of China.

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摘要： Introducing a model nanostructured chain, we study the electronic properties of one-dimensional ordered nanostructured solids in terms of an exact Green's function renormalization-group approach, It is found that two kinds of electronic state, namely localized state and extended statess exist in certain energy regions. As the grain size decreases, the energy regions corresponding to the extended quantity, as well as the gaps, become wider, while the number of the isolated peaks decreases. Furthermore, the appearances of isolated peaks are mainly, due to the modulations of the interface sites.

Abstract: Introducing a model nanostructured chain, we study the electronic properties of one-dimensional ordered nanostructured solids in terms of an exact Green's function renormalization-group approach, It is found that two kinds of electronic state, namely localized state and extended statess exist in certain energy regions. As the grain size decreases, the energy regions corresponding to the extended quantity, as well as the gaps, become wider, while the number of the isolated peaks decreases. Furthermore, the appearances of isolated peaks are mainly, due to the modulations of the interface sites.

中图分类号:  (Electronic structure of nanoscale materials and related systems)

  • 73.22.-f
71.15.Ap (Basis sets (LCAO, plane-wave, APW, etc.) and related methodology (scattering methods, ASA, linearized methods, etc.))