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arXiv · 0905.4844

Tight-binding models for the new iron based superconductor materials

H. Eschrig·K. Koepernik
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Abstract

The rich novel materials class of iron based superconductors turned out to exhibit a very complex electronic structure, despite of the simplicity of their crystal structures. For various approaches to study the instability against magnetic order or superconductivity, a real space description of the electronic structure is required. Here, the bonding situation and the orbital structure of the electronic state are analyzed and minimum tight-binding models quantitatively correctly describing the low-energy electronic structure are provided.

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H. Eschrig, K. Koepernik. 2009-05-29. Tight-binding models for the new iron based superconductor materials. https://doi.org/10.1103/physrevb.80.104503

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