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arXiv · 0910.4040

Surface-angle dependence of the tunneling spectroscopy in iron-based superconductors: sign-reversing s-wave scenarios

Yuki Nagai·Nobuhiko Hayashi·Masahiko Machida
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Abstract

We discuss the surface Andreev bound states in Fe-based superconductors with the use of an effective five-band model and investigate the surface-angle dependence of the tunneling spectroscopy by a quasiclassical approach for an isotropic and an anisotropic /pm s-wave gap superconductivity. We show that information on the normal state is important for the Andreev bound state and its peak positions do not depend on the gap amplitude anisotropy.

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Yuki Nagai, Nobuhiko Hayashi, Masahiko Machida. 2009-10-21. Surface-angle dependence of the tunneling spectroscopy in iron-based superconductors: sign-reversing s-wave scenarios. https://doi.org/10.1016/j.physc.2009.10.043

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