%0 Journal Article
%T Spin current of a single quantum well<br>单量子阱的自旋电流
%A Li Hong
%A Wang Wei-Lu
%A Gong Pi-Feng
%A <br>李 宏
%A 王炜路
%A 公丕锋
%J 物理学报
%D 2007
%I 
%X Using the method of density matrix, the rate equation of electron transport in mesoscopic systems are obtained from manybody Schroedinger equation. From those equations, we deduce expressions of spin current and charge current of single quantum well. It is found that there exists only spin current under certain conditions. Then we derive connection between the left current and the right one. The result shows that when the frequency of the rf field matches the Zeeman frequency of the electron in the quantum well, the spin current has a maximum value, which decreases with spin decoherence time.
%K spin resonance
%K spin current<br>自旋共振
%K 自旋电流
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=82C8D9E022CD98F9&yid=A732AF04DDA03BB3&vid=014B591DF029732F&iid=E158A972A605785F&sid=AAC7B2D4995BA8E4&eid=219F34744F662FF5&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=13