STABILITY AND NATURE OF POLARONS IN A 2-SITE 2-ELECTRON MODEL

被引：26

作者：

DAS, AN ^{[1
]}

CHOUDHURY, P ^{[1
]}

机构：

[1] CENT GLASS & CERAM RES INST, CALCUTTA 700032, W BENGAL, INDIA

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.49.13219

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A two-site two-electron system is studied in the presence of an electron-phonon (e-ph) interaction and intersite hopping of the electrons to determine the stability of different polaronic states. Exact energies and eigenfunctions for the triplet and Anderson bipolaronic states are found. For the singlet bipolaronic state, the role of different phonon states in lowering the energy is discussed. The nature of polarons with the variation in e-ph coupling strength is studied.

引用

页码：13219 / 13222

页数：4

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