中国物理B ›› 2000, Vol. 9 ›› Issue (1): 37-41.doi: 10.1088/1009-1963/9/1/008
刘英1, 李有成1, 李占杰2, 安忠3
An Zhong (安忠)a, Li Zhan-jie (李占杰)b, Liu Ying (刘英)c, Li You-cheng (李有成)c
摘要: The two-dimensional localized modes around a soliton have been investigated by using an extension of Su-Shrieffer-Heeger model, in which is included the nonlinear term of electron-phonon interaction. The results show that there appears an additional localized mode, and the two modes obtained in the previous work without the nonlinear term disappear. Furthermore, the frequencies of the modes are shifted and their localizations are changed after turning on the nonlinear term.
中图分类号: (Solitons)