The mechanism of anisotropic exchange interaction in superconducting iron arsenides

Xiangang Wan; Jinming Dong; Xi Dai

doi:10.1016/j.physleta.2012.04.015

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arXiv · 1205.1109

The mechanism of anisotropic exchange interaction in superconducting iron arsenides

Xiangang Wan·Jinming Dong·Xi Dai

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Abstract

Using a combination of linear response theory and constrained orbital hybridization approach, we study the mechanism of magnetic exchange interaction of iron-based superconductor. We reproduce the observed highly anisotropic exchange interaction, and our constrain-orbital calculation unambiguously identifies that the anisotropic feature of exchange interaction is not sensitive to the unequal d$_{xz}$/d$_{yz}$ orbital population.

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Xiangang Wan, Jinming Dong, Xi Dai. 2012-05-05. The mechanism of anisotropic exchange interaction in superconducting iron arsenides. https://doi.org/10.1016/j.physleta.2012.04.015

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