登录    注册    忘记密码

详细信息

Controllable spin filter composed of ferromagnetic AB-stacking bilayer graphenes  ( SCI-EXPANDED收录 EI收录)   被引量:9

文献类型:期刊文献

英文题名:Controllable spin filter composed of ferromagnetic AB-stacking bilayer graphenes

作者:Yu, Yong[1,2,3];Liang, Qifeng[4];Dong, Jinming[1,2]

机构:[1]Nanjing Univ, Natl Lab Solid State Microstruct, Grp Computat Condensed Matter Phys, Nanjing 210093, Peoples R China;[2]Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China;[3]Jiangsu Inst Educ, Dept Phys, Nanjing 210013, Peoples R China;[4]Univ Shaoxing, Dept Phys, Shaoxing 312000, Peoples R China

年份:2011

卷号:375

期号:30-31

起止页码:2858

外文期刊名:PHYSICS LETTERS A

收录:SCI-EXPANDED(收录号:WOS:000293119600013)、、EI(收录号:20202208736356)、Scopus(收录号:2-s2.0-79959837218)、WOS

基金:This work was supported by the Natural Science Foundation of China under Grant No. 10874067 and also from a Grant for State Key Program of China through Grant Nos. 2010CB630704 and 2011CB922100Q. Liang was supported by the Natural Science Foundation of China under Grant No. 10904092.

语种:英文

外文关键词:Spin filter; Graphene; Conductance; Spin polarization

外文摘要:The electron's tunneling and spin transport in the normal/ferromagnetic/normal (N/FM/N) AB-stacking bilayer graphene (BLG) junction have been studied using Landauer-Buttiker formula. It is found that the resonant conductance peaks could be split well into spin-up and down ones by the exchange field in its FM barrier, leading to a very large spin polarization. More importantly, if a perpendicular electric field is also applied on the FM barrier, a completely spin-polarized flow can be realized by changing its barrier height, making the N/FM/N AB-stacking BLG junction act as a controllable spin filter. (C) 2011 Elsevier B.V. All rights reserved.

参考文献:

正在载入数据...

版权所有©绍兴文理学院 重庆维普资讯有限公司 渝B2-20050021-8
渝公网安备 50019002500408号 违法和不良信息举报中心