%0 Journal Article
%T IMPURITIES AND INTERFACE SCATTERING EFFECT ON THE DIFFERENTIAL CONDUCTANCE NORMAL METAL-d-WAVE SUPERCONDUCTOR JUNCTIONS<br>正常金属-d波超导隧道结中杂质和界面散射对微分电导的影响
%A DONG ZHENG-CHAO
%A <br>董正超
%J 物理学报
%D 1999
%I 
%X Taking into account the impurities and rough interface scattering, using Bogoliubov-de Gennes (BdG) equations and Bolonedr-Tinkham-Klapwijk (BTK) model, we calculate the differential conductance of normal metal-d-wave superconductor. It is found that the tunneling spectum depends strongly on both the incident angle electrons and the crystalline axis orientation of superconductor, and exhibits the zero-bias conductance peak under suitable arrangements. Morevover, the zero-bias conductance dip can be splitted into two small conductance dips by the impurities scattering, the tunnel conductance peak at the energy gap and the zero-bias conductance are suppressed and smoothed by the interface roughnes. Our result can explain many experimental measurements on the tunneling spectum of high-Tc superconductors.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=7F538242354CAFC3D430B1B12CE573A4&yid=B914830F5B1D1078&vid=B6DA1AC076E37400&iid=94C357A881DFC066&sid=BD0BCC5CD284A664&eid=073C3CF5F13F64FE&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0