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arXiv · 1007.4994

Route to ferromagnetism in organic polymers

Zsolt Gulacsi·Arno Kampf·Dieter Vollhardt
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Abstract

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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Zsolt Gulacsi, Arno Kampf, Dieter Vollhardt. 2010-07-28. Route to ferromagnetism in organic polymers. https://doi.org/10.1103/physrevlett.105.266403

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