▎ 摘　　要

Using the extended Blonder-Tinkham-Klapwijk formalism, we investigate the conductance spectra of normal metal/d(x2-y2) + id(xy) mixed wave superconductor graphene junctions. It is found that the conductance spectra vary strongly with the orientation of the gap and amplitude ratio (Delta(1)/Delta(0)) of two components for d(x2-y2) + id(xy) mixed wave. The zero bias conductance is nearly 2 and the conductance peak vanishes in doped graphene for alpha - 0 Delta(1)/Delta(0) = 1. The conductance increases with increasing the amplitude ration of two components for alpha = pi/4 and Delta(1)/Delta(0) = 1. The ZBCP becomes observable wide with 1 < E-F/Delta(0) < 100 for alpha = pi/4 and Delta(1)/Delta(0) = 1. This property is different from that in normal metal/d(x2-y2) wave superconductor graphene junctions.