中国物理B ›› 1994, Vol. 3 ›› Issue (1): 51-55.doi: 10.1088/1004-423X/3/1/006

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EFFECTS OF THE HUBBARD INTERACTIONS AND ELECTROSTATIC PINNING ON THE 2D LOCALIZED MODES OF TRANS-(CH)x AROUND A SOLITON

姚凯伦1, 李占杰1, 邢彪2   

  1. (1)Department of Physics, Huazhong University of Science and Technology Wuhan 430074, China; (2)Department of Physics, University of Alberta Edmontan, Canada 76G 2J1
  • 收稿日期:1993-04-13 出版日期:1994-01-20 发布日期:1994-01-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China.

EFFECTS OF THE HUBBARD INTERACTIONS AND ELECTROSTATIC PINNING ON THE 2D LOCALIZED MODES OF TRANS-(CH)x AROUND A SOLITON

YAO KAI-LUN (姚凯伦)a, LI ZHAN-JIE (李占杰)a, XING BIAO (邢彪)b   

  1. a Department of Physics, Huazhong University of Science and Technology Wuhan 430074, China; b Department of Physics, University of Alberta Edmontan, Canada 76G 2J1
  • Received:1993-04-13 Online:1994-01-20 Published:1994-01-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China.

摘要: The electron-lattice coupling vibrational modes are calculated using a two-dimensional ex-tension of the Su-Schrieffet-Heeger model that includes the bond-bending term, the electron-electron interactions and the electrostatic pianing for doped samples, The result shows that all ten localized modes exist after turning on the e-e interactions and doped pinning effects, but their localizations has been strengthened and the frequencies have been moved slightly.

Abstract: The electron-lattice coupling vibrational modes are calculated using a two-dimensional ex-tension of the Su-Schrieffet-Heeger model that includes the bond-bending term, the electron-electron interactions and the electrostatic pianing for doped samples, The result shows that all ten localized modes exist after turning on the e-e interactions and doped pinning effects, but their localizations has been strengthened and the frequencies have been moved slightly.

中图分类号:  (Localized modes)

  • 63.20.Pw
78.30.Jw (Organic compounds, polymers) 71.38.-k (Polarons and electron-phonon interactions) 61.50.Lt (Crystal binding; cohesive energy)