U= ∞ Hubbard Model for 1D Frustrated Magnets

被引：1
|
作者：
Cheranovskii, Vladyslav Olegovich [1 ]
Ezerskaya, Elena Vladymirovna [1 ]
机构：
[1] Kharkov Natl Univ, UA-61022 Kharkov, Ukraine
来源：
CROATICA CHEMICA ACTA | 2013年 / 86卷 / 04期
关键词：
Hubbard model; infinite electron repulsion; magnetic polarons; nanomagnets; CORRELATED ELECTRON-SYSTEMS;
D O I：
10.5562/cca2323
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The energy spectrum of Hubbard model with infinite repulsion on two types of distorted necklace ladder with additional diagonal interactions is studied analytically and numerically. For the diamond type lattice we demonstrate the appearance of magnetic polarons at negative ratio of hopping parameters describing the interactions of neighbor unit cells. For second type of the lattice, despite of similar triangular topology, the corresponding polarons have nonmagnetic character.
引用
收藏
页码：431 / 434
页数：4
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