POLARON EXCITATION IN TRANSPOLYACETYLENE - EFFECTS OF THE 2ND-NEAREST NEIGHBOR HOPPING INTERACTIONS

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	POLARON EXCITATION IN TRANSPOLYACETYLENE - EFFECTS OF THE 2ND-NEAREST NEIGHBOR HOPPING INTERACTIONS
	Z. J. Li; Z. An; K. L. Yao
	1995
发表期刊	Journal of the Physical Society of Japan
ISSN	0031-9015
卷号	64 期号:2 页码:513-517
摘要	We have studied the energy spectra of polaron and the localized vibrational modes around a polaron in the weakly coupled electron-phonon systems by using an extension of SSH model that includes the second-nearest neighbor hopping interactions. The results show that (1) The electron-hole symmetry of the energy band structure is broken and the energy gap 2 Delta is slightly increased. (2) The number of localized electronic states and their location are changed as in the soliton case. (3) For a negative polaron, eight localized modes have been found, compared with seven in the previous results. (4) The energy spectra of polaron and the localized modes are related to the types of polarons by turning on the second-neighbor hopping interactions.
部门归属	chinese acad sinica,int ctr mat phys,shenyang 110013,peoples r china.;li, zj (reprint author), huazhong univ sci & technol,dept phys,wuhan,peoples r china
关键词	Soliton Trans-(Ch)x Model
URL	查看原文
WOS记录号	WOS:A1995QH74400030
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/38608
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. J. Li,Z. An,K. L. Yao. POLARON EXCITATION IN TRANSPOLYACETYLENE - EFFECTS OF THE 2ND-NEAREST NEIGHBOR HOPPING INTERACTIONS[J]. Journal of the Physical Society of Japan,1995,64(2):513-517.
APA	Z. J. Li,Z. An,&K. L. Yao.(1995).POLARON EXCITATION IN TRANSPOLYACETYLENE - EFFECTS OF THE 2ND-NEAREST NEIGHBOR HOPPING INTERACTIONS.Journal of the Physical Society of Japan,64(2),513-517.
MLA	Z. J. Li,et al."POLARON EXCITATION IN TRANSPOLYACETYLENE - EFFECTS OF THE 2ND-NEAREST NEIGHBOR HOPPING INTERACTIONS".Journal of the Physical Society of Japan 64.2(1995):513-517.