中国物理B ›› 1998, Vol. 7 ›› Issue (12): 905-911.doi: 10.1088/1004-423X/7/12/004

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

SIZE AND GRAIN-DISTRIBUTION EFFECTS IN ELECTRONIC PROPERTIES OF TWO-DIMENSIONAL NANOCRYSTALLINE RECTANGLE SYSTEMS

颜晓红1, 杨奇斌1, 段祝平2, 张立德3   

  1. (1)Department of Physics, Xiangtan University, Xiangtan 411105, China; (2)Institute of Mechanics, Academia Sinica, Beijing 100080, China; (3)Institute of Solid State Physics, Academia Sinica, Hefei 230031, China
  • 收稿日期:1998-04-20 出版日期:1998-12-20 发布日期:1998-12-20
  • 基金资助:
    Project supported by a grant for Key Research in the Climbing Program from the State Science and Technology Commission of China, and partly by the Natural Science Foundation of Hunan province, China.

SIZE AND GRAIN-DISTRIBUTION EFFECTS IN ELECTRONIC PROPERTIES OF TWO-DIMENSIONAL NANOCRYSTALLINE RECTANGLE SYSTEMS

YAN XIAO-HONG (颜晓红)a, YANG QI-BIN (杨奇斌)a, DUAN ZHU-PING (段祝平)b, ZHANG LI-DE (张立德)c   

  1. a Department of Physics, Xiangtan University, Xiangtan 411105, China; b Institute of Mechanics, Academia Sinica, Beijing 100080, China; c Institute of Solid State Physics, Academia Sinica, Hefei 230031, China
  • Received:1998-04-20 Online:1998-12-20 Published:1998-12-20
  • Supported by:
    Project supported by a grant for Key Research in the Climbing Program from the State Science and Technology Commission of China, and partly by the Natural Science Foundation of Hunan province, China.

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摘要： According to the structural characters of real nanostructured systems, a model for two-dimensional nanostructured systems has been proposed. By developing a renormalization-group Green's function scheme, local electronic density of states at a type of crystallire sites is presented on the pure hopping model. It is found that the changes of all the grain-distribution rules, the average atomic number and the atomic interaction are connected with the spectral structures of nanostructured systems. However, bule shifts of the spectra of nanostruetured systems seem to be modulated mainly by the changes of the bond-parameters which are correlated with the lattice distortions of the nano-sized grains.

Abstract: According to the structural characters of real nanostructured systems, a model for two-dimensional nanostructured systems has been proposed. By developing a renormalization-group Green's function scheme, local electronic density of states at a type of crystallire sites is presented on the pure hopping model. It is found that the changes of all the grain-distribution rules, the average atomic number and the atomic interaction are connected with the spectral structures of nanostructured systems. However, bule shifts of the spectra of nanostruetured systems seem to be modulated mainly by the changes of the bond-parameters which are correlated with the lattice distortions of the nano-sized grains.

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

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