THE HUBBARD TRANSITION IN MOLECULAR-SYSTEMS

被引：2
|
作者：
LI, SH
JIANG, Y
机构：
[1] Department of Chemistry, Center for Advanced Studies in Science and Technology of Microstructures, Nanjing University, Nanjing
来源：
CHEMICAL PHYSICS LETTERS | 1995年 / 241卷 / 1-2期
关键词：
D O I：
10.1016/0009-2614(95)00607-6
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：
The Hubbard transition occurring in molecular systems is investigated by exact diagonalization of the Hubbard model for a set of planar eight-atom systems. The symmetry distortion observed in pentalene has been attributed to the Hubbard transition. Two novel systems are first found to have double transitions in their ground states as the Hubbard parameters vary, confirming that there exists another novel picture of the Hubbard transition in molecular systems.
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页码：57 / 61
页数：5
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