%0 Journal Article
%T Electronic Transport through a Waveguide in the Presence of a Magnetic Obstacle
%A GAO Wen-Zhu
%A SUN Lang
%A ZHENG Yi-Song
%A <br>高文竹
%A 孙朗
%A 郑以松
%J 中国物理快报
%D 2007
%I 
%X 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.
%K 72
%K 25
%K Dc
%K 72
%K 25
%K Mk
%K 73
%K 21
%K Hb
%K 75
%K 47
%K -m
%K 85
%K 75
%K -d<br>电子传输
%K 波导
%K 磁性阻碍物
%K 电子学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=03664AC44D480818056A8B096EC4FFF7&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=B31275AF3241DB2D&sid=855ED43B65D18D49&eid=EB4751E019AF0441&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0