Hybridization Induced Competitive Scanning Tunneling Interference Process into a Heavy Fermion System  

作　　者：羊富彬 

机构地区：[1]Department of Physics, College of Computer, Civil Aviation Flight University of China

出　　处：《Chinese Physics Letters》2018年第7期110-113,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 11547203

摘　　要：We theoretically present the results for a scanning interference tunneling process between a metallic tip and a heavy fermion system. The density of states（DOS） and the differential conductance at zero temperature under different c-f band hybridizations, as well as the interference Fano ratio strength in the heavy fermion system,are calculated. It is found that the hybridization strength gives rise to the splitting effect in the DOS around the Fermi energy. Also the interference Fano ratio strength makes the differential conductance characteristics strongly asymmetric.We theoretically present the results for a scanning interference tunneling process between a metallic tip and a heavy fermion system. The density of states（DOS） and the differential conductance at zero temperature under different c-f band hybridizations, as well as the interference Fano ratio strength in the heavy fermion system,are calculated. It is found that the hybridization strength gives rise to the splitting effect in the DOS around the Fermi energy. Also the interference Fano ratio strength makes the differential conductance characteristics strongly asymmetric.

分 类 号：O469[理学—凝聚态物理]