Normal state properties of an interacting large polaron gas

被引：25

作者：

De Filippis, G ^{[1
]}

Cataudella, V

Iadonisi, G

机构：

[1] Univ Salerno, Dipartimento Sci Fis, I-84081 Baronissi, Salerno, Italy

[2] Univ Naples Federico II, Dipartimento Sci Fis, I-80125 Naples, Italy

来源：

EUROPEAN PHYSICAL JOURNAL B | 1999年 / 8卷 / 03期

关键词：

D O I：

10.1007/s100510050699

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A simple approach to the many-polaron problem for both weak and intermediate electron-phonon coupling and valid for densities much smaller than those typical of metals is presented. Within the model the total energy, the collective modes and the single-particle properties are studied and compared with the available theories. It is shown the occurrence of a charge density wave instability in the intermediate coupling regime.

引用

页码：339 / 351

页数：13

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