COEXISTENCE OF ITINERANT ELECTRONS AND SELF-TRAPPED ELECTRONS

被引：7

作者：

SUZUKI, S ^{[1
]}

TOYOZAWA, Y ^{[1
]}

机构：

[1] CHUO UNIV,DEPT PHYS,BUNKYO KU,TOKYO 112,JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1990年 / 59卷 / 08期

关键词：

D O I：

10.1143/JPSJ.59.2841

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The ground-state properties of the low-density electron system with the short-range electron-phonon interaction is investigated theoretically in connection with the self-trapping of an electron. The energy change of the system due to lattice distortions is calculated with the use of Fumi's theorem and the coherent potential approximation. It is shown that theitinerant electrons and the self-trapped electrons coexist in a certain range of the parameters. self-trapping, small polaron, charge density wave, Peierls transition. © 1990, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.

引用

页码：2841 / 2847

页数：7

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