%0 Journal Article
%T Spin-polarized electron transport and magnetoresistance effect in symmetric parabolic-well magnetic tunneling junction<br>对称抛物势阱磁性隧道结中的自旋输运及磁电阻效应
%A Liu De
%A Zhang Hong-Mei
%A Jia Xiu-Min
%A <br>刘德
%A 张红梅
%A 贾秀敏
%J 物理学报
%D 2011
%I 
%X We investigated the spin-dependent transmission coefficient and tunneling magnetoresistance in symmetric parabolic-well with two ferromagnetic contacts (F/SPW/F). The quantum size effect and Rashba spin-orbit interaction are discussed simultaneously. The results indicate that the transmission coefficient and tunneling magnetoresistance are periodic function of the parabolic-well width. The oscillation frequencies of the transmission coefficient and tunneling magnetoresistance decrease with the increasing of the parabolic-well depth. The oscillation frequencies of the transmission coefficient and tunneling magnetoresistance increase with the increasing of the Rashba spin-orbit coupling strength. The amplitude and peak-to-valley ratio of the transmission coefficient and tunneling magnetoresistance are strongly dependent on the difference in orientations of the two magnetizations in the left and right ferromagnets.
%K magnetic tunneling junction
%K Rashba spin-orbit coupling
%K transmission coefficient
%K tunneling magnetoresistance<br>磁性隧道结
%K Rashba
%K 自旋轨道耦合
%K 隧穿概率
%K 隧穿磁电阻
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=F0DEB90B78F5221579D5AC9785B2C960&yid=9377ED8094509821&vid=BFE7933E5EEA150D&iid=CA4FD0336C81A37A&sid=75A961F8230E1DFF&eid=75A961F8230E1DFF&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=35