SOLITARY EXCITATIONS IN AN ANHARMONIC MOLECULAR CHAIN WITH 2ND-NEIGHBOR INTERACTION

被引：2

作者：

PRIMATAROWA, MT

机构：

[1] Institute of Solid State Physics, Bulgarian Academy of Sciences, Sofia

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1991年 / 168卷 / 01期

关键词：

D O I：

10.1002/pssb.2221680115

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Nonlinear effects caused by the interaction of an exciton with phonons in deformable molecular chains are considered iD the second-neighbour approximation. The cubic anharmonicitv of the intermolecular potential leads to a nonlinear Schrodinger equation with nonlinearities of third and fifth power with respect to the function. Two types of solitary bound states are shown to appear situated at the bottom and the top of the exciton energy band, respectively. The parameters of the solitary excitations are calculated.

引用

页码：157 / 163

页数：7

共 10 条

[1]

Davydov A. S., 1971, THEORY MOL EXCITONS

[2]

DAVYDOV AS, 1982, USP FIZ NAUK+, V138, P603, DOI 10.1070/PU1982v025n12ABEH005012

[3] AUTOLOCALIZED COLLECTIVE EXCITATIONS IN MOLECULAR CHAINS WITH CUBIC ANHARMONICITY [J].

DAVYDOV, AS ;

ZOLOTARIUK, AV .

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1983, 115 (01) :115-125

[4] SOLITONS IN ONE-DIMENSIONAL MOLECULAR CHAINS [J].

DAVYDOV, AS ;

KISLUKHA, NI .

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1976, 75 (02) :735-742

[5] SOLITARY EXCITONS IN ONE-DIMENSIONAL MOLECULAR CHAINS [J].

DAVYDOV, AS ;

KISLUKHA, NI .

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1973, 59 (02) :465-470

[6] ELECTRONS AND EXCITONS IN NON-LINEAR MOLECULAR CHAINS [J].

DAVYDOV, AS ;

ZOLOTARIUK, AV .

PHYSICA SCRIPTA, 1983, 28 (02) :249-256

[7] SOLITON EXCITATIONS IN DEFORMABLE SOLIDS [J].

PUSHKAROV, DI ;

PRIMATAROWA, MT .

PHYSICA SCRIPTA, 1989, 39 (05) :620-623

[8] DYNAMICS THEORY OF QUANTUM CRYSTALS WITH DELOCALIZED DEFECTS [J].

PUSHKAROV, DI .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1986, 19 (35) :6873-6885

[9] SOLITARY CLUSTERS OF SPIN DEVIATIONS AND LATTICE DEFORMATION IN AN ANHARMONIC FERROMAGNETIC CHAIN [J].

PUSHKAROV, KI ;

PRIMATAROWA, MT .

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1984, 123 (02) :573-584

[10]

PUSHKAROV KI, 1984, IC84131 ICTP PREPR

← 1 →