SELF-TRAPPING IN QUASI-ONE-DIMENSIONAL ELECTRON-PHONON AND EXCITON-PHONON SYSTEMS

被引：45

作者：

IVIC, Z ^{[1
]}

KAPOR, D ^{[1
]}

SKRINJAR, M ^{[1
]}

POPOVIC, Z ^{[1
]}

机构：

[1] FAC SCI NOVI SAD, INST PHYS, NOVI SAD, YUGOSLAVIA

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.48.3721

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study self-trapping of electrons (excitons) in one-dimensional systems with three realistic types of coupling with phonons, applying a variational procedure valid for the whole range of system parameters. Various types of self-trapped states are identified and mapped in the parameter space. Our results are compared to the results of previous studies. The particular case of biological systems is studied and it is shown that the Davydov-soliton concept can be used for the description of electron transport in biological systems, but not for the energy transfer in terms of amide-I vibrations (CO stretching vibration mode).

引用

页码：3721 / 3733

页数：13

共 47 条

[1] LOCALIZED EXCITATIONS IN HYDROGEN-BONDED MOLECULAR-CRYSTALS [J].

ALEXANDER, DM ;

KRUMHANSL, JA .

PHYSICAL REVIEW B, 1986, 33 (10) :7172-7185

[2]

[Anonymous], ZH EKSP TEOR FIZ

[3]

[Anonymous], 1982, EXCITONS

[4]

Appel J., 1968, SOLID STATE PHYS, V21, P193, DOI DOI 10.1016/S0081-1947(08)60741-9

[5]

BRAZOVSKII SA, 1978, JETP LETT+, V28, P606

[6] APPLICABILITY OF HAMILTON EQUATIONS IN THE QUANTUM SOLITON PROBLEM [J].

BROWN, DW ;

LINDENBERG, K ;

WEST, BJ .

PHYSICAL REVIEW A, 1986, 33 (06) :4104-4109

[7] UNIFICATION OF POLARON AND SOLITON THEORIES OF EXCITON TRANSPORT [J].

BROWN, DW ;

IVIC, Z .

PHYSICAL REVIEW B, 1989, 40 (14) :9876-9887

[8]

BROWN DW, 1990, DAVYDOVS SOLITON REV

[9]

BUIMISTROV VM, 1957, ZH EKSP TEOR FIZ, V33, P1271

[10] POLARONS IN QUASI-ONE-DIMENSIONAL SYSTEMS [J].

CAMPBELL, DK ;

BISHOP, AR ;

FESSER, K .

PHYSICAL REVIEW B, 1982, 26 (12) :6862-6874

← 1 2 3 4 5 →