Zero-bias conductance peak observed in Au/FeSe0.3Te0.7 ramp-type junctions and its implication on the superconducting order parameter

Y. S. Li, J. Y. Luo, M. J. Wang +3

Based upon the currently predominant theory of Fe-based superconductors, the order parameter symmetry is the nodaless s\pm-wave. Andreev conductance involving normal metals and suc…