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
a Department of Physics, Huazhong University of Science and Technology Wuhan 430074, China; b Department of Physics, University of Alberta Edmontan, Canada 76G 2J1
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.
Received: 13 April 1993
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China.
Cite this article:
YAO KAI-LUN (姚凯伦), LI ZHAN-JIE (李占杰), XING BIAO (邢彪) EFFECTS OF THE HUBBARD INTERACTIONS AND ELECTROSTATIC PINNING ON THE 2D LOCALIZED MODES OF TRANS-(CH)x AROUND A SOLITON 1994 Acta Physica Sinica (Overseas Edition) 3 51
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