杂质散射波导理论在T型量子调制晶体管中的应用  

Apply of Quantum Waveguide Theory for Impurity Scattering in T-shape Quantum Modulated transistor

作　　者：罗国忠[1] 

机构地区：[1]忻州师范学院,山西忻州034000

出　　处：《忻州师范学院学报》2015年第2期1-5,共5页Journal of Xinzhou Teachers University

摘　　要：近年来,在量子波导管中由于杂质的弹性散射的效应能被精确地以一维散射问题来研究。文章在电子输运的量子波导理论基础上研究了介观结构中δ势杂质散射的一维量子波导理论,并把这个理论方法应用在T型量子调制晶体管中杂质散射波导理论中,发现介观结构的振荡结构被破坏了。Recently, the effect of elastic scattering due to impurities in the quantum waveguide is investigated with an exact calculation of a one - dimensional scattering problem. In this article, A quantum waveguide theory of 8 potential impurity scattering for mesoscopic stuctures is proposed on the basis of one - dimensional quantum waveguide theory for electronic transport, the theory methods is then ap- plied to a T - Shaped quantum modulated transistor, It is found that the conductance are modulated by the impurity scattering and the whole oscillIation structure is distorted due to the scattering.

关 键 词：介观结构 杂质散射 量子波导 量子调制晶体管 T型 

分 类 号：O469[理学—凝聚态物理]