Route to Ferromagnetism in Organic Polymers

被引：50
|
作者：
Gulacsi, Zsolt [1 ,2 ]
Kampf, Arno [1 ]
Vollhardt, Dieter [1 ]
机构：
[1] Univ Augsburg, Inst Phys, Ctr Elect Correlat & Magnetism, D-86135 Augsburg, Germany
[2] Univ Debrecen, Dept Theoret Phys, H-4010 Debrecen, Hungary
来源：
PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 26期
关键词：
ELECTRON GROUND-STATES; POLY(3-HEXYLTHIOPHENE); CONDUCTIVITY; TRANSISTORS; DENSITY;
D O I：
10.1103/PhysRevLett.105.266403
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Employing a rigorous theoretical method for the construction of exact many-electron ground states we prove that interactions can be employed to tune a bare dispersive band structure such that it develops a flat band. Thereby, we show that pentagon-chain polymers with electron densities above half filling may be designed to become ferromagnetic or half metallic.
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页数：4
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