Abstract：Taking into account the impurities scattering in the normal metal region, using square-potential barrier to describe the insulating layer, we study further the tunneling spectrum of the normal metal/insulating layer/s-wave superconductor tunnel junctions making use of Bogoliubov-de Gennes(BdG) equation and Blonder-Tinkham-Klapwijk(BTK) theory. It is found that: (1) The change of the differential conductance with insulating layer width takes the form of attenuation when U_0>E_F, and the degree of attenuation is different under different bias; (2) The attenuation can abate the conductance peak at the energy gap; (3) The zero-bias conductance dip of the tunneling spectrum can be induced a small peak by a little impurities scattering.
收稿日期: 2004-03-25
引用本文:
魏健文. 正常金属/绝缘层/s波超导隧道结中的隧道谱[J]. , 2004, 43(3): 0-0.
魏健文. Tunneling spectrum in the normal metal/insulating layer/s-wave superconductor tunnel junctions. , 2004, 43(3): 0-0.
