Theory of tunneling spectroscopy in LaFeAsO1-xFx
DOI: 10.1016/J.PHYSC.2009.05.097
关键词: Random phase approximation 、 Hubbard model 、 Conductance 、 Superconductivity 、 Condensed matter physics 、 Fermi surface 、 Band gap 、 Physics 、 Quantum tunnelling 、 Density of states
摘要: Abstract We calculate the surface density of state iron based LaFeAsO 1 - x F superconductor. The gap function is obtained microscopically by solving Eliashberg equation in a 5-band Hubbard model with random phase approximation (RPA). Although has sign change between Fermi surfaces, we cannot find zero bias conductance peak for [1 0 0] and [1 1 0]-oriented interface.
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