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arXiv · 0804.0186

Strong electron-phonon coupling of the Fe breathing mode of LaO_{1-x}F_xFeAs

Helmut Eschrig
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Abstract

The electron-phonon coupling of LaO$_{1-x}$F$_x$FeAs is re-investigated on the basis of density functional theory in local density approximation. The implications of the $(π,π)$ nesting of the Fermi surfaces are carefully studied and found to lead to a non-standard electron-phonon coupling of the corresponding Fe in-plane breathing mode, which might make a strong contribution to the high superconducting transition temperature. The semi-metallic behavior of the undoped material is also further illuminated.

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Helmut Eschrig. 2008-04-11. Strong electron-phonon coupling of the Fe breathing mode of LaO_{1-x}F_xFeAs. https://arxiv.org/abs/0804.0186

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