Electronic Transport through a Waveguide in the Presence of a Magnetic Obstacle  

作　　者：高文竹 孙朗 郑以松 

机构地区：[1]Department of Physics, Jilin University, Changchun 130023

出　　处：《Chinese Physics Letters》2007年第6期1693-1696,共4页中国物理快报（英文版）

摘　　要：By means of the transfer matrix technique, the electronic transport through a quantum waveguide in the presence of a magnetic obstacle is investigated theoretically. By comparing the calculated conductance spectra of the opposite spin electrons, we find that there exists a notable spin filtering window in the low energy region. Dependences of such a spin filtering window on the size, position and potential strength of the magnetic obstacle are studied in detail.By means of the transfer matrix technique, the electronic transport through a quantum waveguide in the presence of a magnetic obstacle is investigated theoretically. By comparing the calculated conductance spectra of the opposite spin electrons, we find that there exists a notable spin filtering window in the low energy region. Dependences of such a spin filtering window on the size, position and potential strength of the magnetic obstacle are studied in detail.

关 键 词：QUANTUM ANTIRESONANCE TRANSMISSION GAS 

分 类 号：O46[理学—电子物理学]