%0 Journal Article
%T Ballistic Transport in Y-Typed Quantum Channels<br>Y型量子线中电子弹道输运性质
%A WANG Chuan
%A kui
%A and
%A JIANG Zhao
%A tan
%A <br>王传奎
%A 江兆潭
%J 半导体学报
%D 2001
%I 
%X The quantum mechanical calculations of ballistic transport in finite Y typed quantum channels are carried out.The channels connect to two semi infinite quantum channels,which serve as the emitter and collector respectively when a potential difference is applied.The calculations are based on the transfer matrix method and a truncating approximation.The numerical results show that,when the structure is symmetry related to the x direction,there exist two peaks in the conductance at the energy of electrons less than the eigenvalue of the first transverse mode,and,when the structure is asymmetry related to the x direction,there exist three peaks.It must be pointed out that these peaks are due to the resonant tunneling via bound states in the quantum structure which is a classical unbound system.When the structure is symmetry related to the x direction,the higher energy level has double degeneracy,otherwise the degeneracy of the level is removed.
%K quantum bound state
%K resonant tunneling
%K Y
%K typed quantum wire<br>量子束缚态
%K 共振隧穿
%K Y型量子线
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=025C8057C4D37C4BA0041DC7DE7C758F&aid=5594C1FA2B187C1D&yid=14E7EF987E4155E6&vid=BC12EA701C895178&iid=38B194292C032A66&sid=E2B9962CCD971A0D&eid=EBD6B792C9111B87&journal_id=1674-4926&journal_name=半导体学报&referenced_num=1&reference_num=26