Route to Ferromagnetism in Organic Polymers

被引：52

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.

引用

页数：4

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