PLASMON EFFECTS ON FROHLICH BIPOLARON BINDING-ENERGIES

被引：23

作者：

CATAUDELLA, V

IADONISI, G

NINNO, D

机构：

来源：

EUROPHYSICS LETTERS | 1992年 / 17卷 / 8BIS期

关键词：

POLARONS AND ELECTRON-PHONON INTERACTIONS; THEORY; EXCHANGE; CORRELATION; DIELECTRIC AND MAGNETIC FUNCTIONS; PLASMONS;

D O I：

10.1209/0295-5075/17/8/008

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the possibility of formation of bipolarons in the presence of plasmons taking into account short-range electron screening. We have found that the coexistence of phonons and plasmons strongly enhances the binding energy. Its dependence on the electron density has been studied and the existence of a maximum has been shown. Finally the possible connection between these results and high-T(c) superconductors is briefly commented.

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页码：709 / 714

页数：6

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