Magnetotransport through a quantum wire side coupled to a quantum dot

被引：52
|
作者：
Aligia, AA [1 ]
Salguero, LA
机构：
[1] Comis Nacl Energia Atom, Ctr Atom Bariloche, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina
[2] Inst Balseiro, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina
[3] Univ Nacl Colombia, Dept Phys, Condensed Matter Phys Grp, Bogota, Colombia
来源：
PHYSICAL REVIEW B | 2004年 / 70卷 / 07期
关键词：
D O I：
10.1103/PhysRevB.70.075307
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study the spin-dependent zero-bias conductance through a quantum wire with a single ballistic channel side coupled to a quantum dot as a function of gate voltage V-g, magnetic field B, and temperature T. The system is modeled with the Anderson model, solved using an interpolative approximation for moderate values of the Coulomb repulsion U, and within the slave-boson mean field for infinite U and T=0. Tuning V-g, for large enough B and small enough T, the system is a very efficient spin filter.
引用
收藏
页码：075307 / 1
页数：5
相关论文
共 50 条
  • [1] Magnetotransport through a quantum wire side-coupled to a quantum dot (vol 70, art no 075307, 2004)
    Aligia, AA
    Salguero, LA
    [J]. PHYSICAL REVIEW B, 2005, 71 (16):
  • [2] Electronic transport through a quantum wire with a side-coupled quantum dot
    Lobo, T.
    Figueira, M. S.
    Foglio, M. E.
    [J]. BRAZILIAN JOURNAL OF PHYSICS, 2006, 36 (2A) : 397 - 400
  • [3] Electron transport through a quantum wire with a side-coupled quantum dot: Fano resonance
    Xiong, YJ
    He, ZB
    [J]. CHINESE PHYSICS LETTERS, 2004, 21 (09) : 1802 - 1804
  • [4] Transport properties of a quantum wire with a side-coupled quantum dot
    Yamaguchi, M
    Richter, A
    Tamura, H
    Akazaki, T
    Takayanagi, H
    [J]. REALIZING CONTROLLABLE QUANTUM STATES: MESOSCOPIC SUPERCONDUCTIVITY AND SPINTRONICS, 2005, : 55 - 60
  • [5] Fano resonance in a quantum wire with a side-coupled quantum dot
    Kobayashi, K
    Aikawa, H
    Sano, A
    Katsumoto, S
    Iye, Y
    [J]. PHYSICAL REVIEW B, 2004, 70 (03) : 035319 - 1
  • [6] Electronic transport through a quantum wire coupled to a quantum dot
    Liu, YL
    Ng, TK
    [J]. PHYSICAL REVIEW B, 2000, 61 (04): : 2911 - 2920
  • [7] Influence of an external voltage on the conductance through a quantum dot side-coupled to a short quantum wire
    Zhang, ZY
    Xiong, SJ
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2005, 17 (38) : 5987 - 5995
  • [8] Anti-Kondo resonance in transport through a quantum wire with a side-coupled quantum dot
    Kang, KC
    Cho, SY
    Kim, JJ
    Shin, SC
    [J]. PHYSICAL REVIEW B, 2001, 63 (11)
  • [9] Universal zero-bias conductance through a quantum wire side-coupled to a quantum dot
    Seridonio, A. C.
    Yoshida, M.
    Oliveira, L. N.
    [J]. PHYSICAL REVIEW B, 2009, 80 (23):
  • [10] Excited-state spectroscopy on a quantum dot side coupled to a quantum wire
    Otsuka, T.
    Abe, E.
    Iye, Y.
    Katsumoto, S.
    [J]. APPLIED PHYSICS LETTERS, 2008, 93 (11)
12345