| Transport properties through double-magnetic-barrier structures in graphene |
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| 作者姓名： | 王素新 李志文 刘建军 李玉现 |
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| 作者单位： | Department of Physics,Hebei Normal College for Nationalities Hebei Advanced Film Laboratory College of Physics,Hebei Normal University |
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| 基金项目： | Project supported by the National Natural Science Foundation of China （Grant No. 10974043） and the Natural Science Foundation of Hebei Province of China （Grant No. A2009000240）. |
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| 摘 要： | We study electrons tunneling through a double-magnetic-barrier structure on the surface of monolayer graphene.The transmission probability and the conductance are calculated by using the transfer matrix method.The results show that the normal incident transmission probability is blocked by the magnetic vector potential and the Klein tunneling region depends strongly on the direction of the incidence electron.The transmission probability and the conductance can be modulated by changing structural parameters of the barrier,such as width and height,offering a possibility to control electron beams on graphene.
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| 关 键 词： | transmission probability conductance double-magnetic-barrier graphene |
| 收稿时间： | 2010-12-07 |
Transport properties through double-magnetic-barrier structures in graphene |
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| Wang Su-Xin,Li Zhi-Wen,Liu Jian-Jun and Li Yu-Xian.Transport properties through double-magnetic-barrier structures in graphene[J].Chinese Physics B,2011,20(7):77305-077305. |
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| Authors: | Wang Su-Xin Li Zhi-Wen Liu Jian-Jun and Li Yu-Xian |
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| Institution: | Department of Physics, Hebei Normal College for Nationalities, Chengde 067000, China;Department of Physics, Hebei Normal College for Nationalities, Chengde 067000, China;College of Physics, Hebei Normal University, Shijiazhuang 050016, China;College of Physics, Hebei Normal University, Shijiazhuang 050016, China |
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| Abstract: | We study electrons tunneling through a double-magnetic-barrier structure on the surface of monolayer graphene. The transmission probability and the conductance are calculated by using the transfer matrix method. The results show that the normal incident transmission probability is blocked by the magnetic vector potential and the Klein tunneling region depends strongly on the direction of the incidence electron. The transmission probability and the conductance can be modulated by changing structural parameters of the barrier, such as width and height, offering a possibility to control electron beams on graphene. |
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| Keywords: | transmission probability conductance double-magnetic-barrier graphene |
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