中国物理B ›› 2004, Vol. 13 ›› Issue (9): 1537-1543.doi: 10.1088/1009-1963/13/9/030
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
陈元平, 颜晓红, 卢卯旺, 邓宇翔
Chen Yuan-Ping (陈元平), Yan Xiao-Hong (颜晓红), Lu Mao-Wang (卢卯旺), Deng Yu-Xiang (邓宇翔)
摘要: By developing the recursive Green function method, the transport properties through a quantum wire embedding a finite-length saw-tooth superlattice are studied in the presence of magnetic field. The effects of magnetic modulation and the geometric structures of the superlattice on transmission coefficient are discussed. It is shown that resonant peak splitting of this kind of structure is different from that of ‘magnetic' and ‘electric' superlattices in two-dimensional electron gas. The transmission spectrum can be tailored to match requirements through adjusting the size of saw-tooth quantum dot and field strength.
中图分类号: (Quantum wires)