MOLECULE FORMATION AND THE FAREY TREE IN THE ONE-DIMENSIONAL FALICOV-KIMBALL MODEL

被引：50

作者：

GRUBER, C ^{[1
]}

UELTSCHI, D ^{[1
]}

JEDRZEJEWSKI, J ^{[1
]}

机构：

[1] UNIV WROCLAW,INST THEORET PHYS,PL-50204 WROCLAW,POLAND

来源：

JOURNAL OF STATISTICAL PHYSICS | 1994年 / 76卷 / 1-2期

关键词：

FALICOV-KIMBALL MODEL; GROUND STATES; PHASE DIAGRAM; PHASE SEPARATIONS; MOLECULES;

D O I：

10.1007/BF02188658

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The ground-state configurations of the one-dimensional Falicov-Kimball model are studied exactly with numerical calculations revealing unexpected effects for small interaction strength. In neutral systems we observe molecular formation, phase separation, and changes in the conducting properties; while in nonneutral systems the phase diagram exhibits Farey tree order (Aubry sequence) and a devil's staircase structure. Conjectures are presented for the boundary of the segregated domain and the general structure of the ground states.

引用

页码：125 / 157

页数：33

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