Electron pairing in one-dimensional anharmonic crystal lattices

被引：10
作者：
Velarde, M. G. [1 ]
Brizhik, L. [1 ,2 ]
Chetverikov, A. P. [1 ,3 ]
Cruzeiro, L. [1 ,4 ,5 ]
Ebeling, W. [1 ,6 ]
Roepke, G. [1 ,7 ]
机构：
[1] Univ Complutense Madrid, Inst Pluridisciplinar, E-28040 Madrid, Spain
[2] Bogolyubov Inst Theoret Phys, UA-03680 Kiev, Ukraine
[3] NG Chernyshevskii Saratov State Univ, Fac Phys, Saratov 410012, Russia
[4] Univ Algarve, CCMAR, P-8005139 Faro, Portugal
[5] Univ Algarve, FCT, P-8005139 Faro, Portugal
[6] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany
[7] Univ Rostock, Inst Phys, D-18051 Rostock, Germany
来源：
INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY | 2012年 / 112卷 / 02期
关键词：
anharmonic lattice; lattice soliton; solectron; electron pairing; bisolectron; SOLITARY WAVES; SOLITONS; EXCITATIONS; STATES; CHAIN; CONDUCTION; DYNAMICS; SYSTEMS;
D O I：
10.1002/qua.23008
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We show that when anharmonicity is added to the electronphonon interaction it facilitates electron pairing in a localized state. Such localized state appears as singlet state of two electrons bound with the traveling local lattice soliton distortion, which survives when Coulomb repulsion is included. (C) 2011 Wiley Periodicals, Inc. Int J Quantum Chem 112: 551-565, 2012
引用
收藏
页码：551 / 565
页数：15
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