Ballistic electron transport in hybrid ferromagnet/two-dimensional electron gas sandwich nanostructure: Spin polarization and magnetoresistance effect

被引：0
|
作者：
Wang, Y. [1 ]
Chen, N.F. [1 ,2 ]
Jiang, Y. [3 ]
Zhang, X.W. [1 ]
机构：
[1] Key Laboratory of Semiconductor Material Sciences, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
[2] National Laboratory of Microgravity, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China
[3] School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
来源：
Journal of Applied Physics | 2009年 / 105卷 / 01期
关键词：
We have theoretically investigated ballistic electron transport through a combination of magnetic-electric barrier based on a vertical ferromagnet/two-dimensional electron gas/ferromagnet sandwich structure; which can be experimentally realized by depositing asymmetric metallic magnetic stripes both on top and bottom of modulation-doped semiconductor heterostructures. Our numerical results have confirmed the existence of finite spin polarization even though only antisymmetric stray field Bz is considered. By switching the relative magnetization of ferromagnetic layers; the device in discussion shows evident magnetoconductance. In particular; both spin polarization and magnetoconductance can be efficiently enhanced by proper electrostatic barrier up to the optimal value relying on the specific magnetic-electric modulation. © 2009 American Institute of Physics;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
相关论文
共 50 条
  • [41] Magnetoresistance oscillations in a dimpled two-dimensional electron gas
    Gusev, GM
    Gennser, U
    Kleber, X
    Maude, DK
    Portal, JC
    Lubyshev, DI
    Basmaji, P
    Silva, MDPA
    Rossi, JC
    Nastaushev, YV
    [J]. SURFACE SCIENCE, 1996, 361 (1-3) : 855 - 859
  • [42] Magnetoresistance oscillations of quasi-ballistic two-dimensional electron gas coupled with a superconducting ring
    Toyoda, E
    Takayanagi, H
    [J]. PHYSICA B-CONDENSED MATTER, 1998, 249 : 472 - 475
  • [43] Magnetoresistance of a lateral contact to a two-dimensional electron gas
    Uhlisch, D
    Kupriyanov, MY
    Golubov, AA
    Appenzeller, J
    Klocke, T
    Neurohr, K
    Ustinov, AV
    Braginski, AI
    [J]. PHYSICA B-CONDENSED MATTER, 1996, 225 (3-4) : 197 - 201
  • [44] Spin polarization effect on spin Coulomb drag in a two-dimensional electron system
    Amir Hosein Esmailian
    Faramarz Kanjouri
    Fatemeh Tavasoli
    [J]. The European Physical Journal B, 2013, 86
  • [45] Spin polarization effect on spin Coulomb drag in a two-dimensional electron system
    Esmailian, Amir Hosein
    Kanjouri, Faramarz
    Tavasoli, Fatemeh
    [J]. EUROPEAN PHYSICAL JOURNAL B, 2013, 86 (04):
  • [46] Electron spin polarization through interactions between excitons, trions, and the two-dimensional electron gas
    Chen, Z.
    Bratschitsch, R.
    Carter, S. G.
    Cundiff, S. T.
    Yakovlev, D. R.
    Karczewski, G.
    Wojtowicz, T.
    Kossut, J.
    [J]. PHYSICAL REVIEW B, 2007, 75 (11):
  • [47] Spin-dependent transport in a magnetic two-dimensional electron gas
    Smorchkova, IP
    Kikkawa, JM
    Samarth, N
    Awschalom, DD
    [J]. PHYSICA E, 1998, 2 (1-4): : 381 - 387
  • [48] Spin transport in an InAs based two-dimensional electron gas nanochannel
    Yi, H
    Koo, HC
    Kim, WY
    Chang, JY
    Han, SH
    Lim, SH
    [J]. JOURNAL OF APPLIED PHYSICS, 2005, 97 (10)
  • [49] Spin-dependent transport in a magnetic two-dimensional electron gas
    Department of Physics, Pennsylvania State University, University Park, PA 16802, United States
    不详
    [J]. Physica E: Low-Dimensional Systems and Nanostructures, 1998, 2 (1-4): : 381 - 387
  • [50] Diffuse transport and spin accumulation in a Rashba two-dimensional electron gas
    Inoue, J
    Bauer, GEW
    Molenkamp, LW
    [J]. PHYSICAL REVIEW B, 2003, 67 (03)
12345