Electronic properties of nanographite ribbons in a spatially modulated electric field

S. C. Chen, C. Y. Lin, M. F. Lin

研究成果: Article同行評審

4 引文 斯高帕斯(Scopus)

摘要

The single π-band tight-binding method, with the nearest neighbor interactions, is used to calculate the electronic properties of the nanographite ribbons in a spatially modulated electric field. The electric field destroys state degeneracy, modifies energy dispersions, alters subband spacings, changes energy band gap, and causes the semiconductor-metal transition. The growth of field period could enhance the modulation ability of the electric field. The energy gap is very sensitive to the field strength, field period, and ribbon width. The changes of energy subband are completely reflected on the features of density of states (DOS). The strength and the period of the electric field have great influence on DOS, namely, changing frequency of the first peak, altering peak height, shifting peak position, and even producing new peaks.

原文English
頁(從 - 到)1545-1549
頁數5
期刊Diamond and Related Materials
17
發行號7-10
DOIs
出版狀態Published - 2008 七月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 化學 (全部)
  • 機械工業
  • 材料化學
  • 電氣與電子工程

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