Atomic carbon chains as spin-transmitters: An ab initio transport study

被引：26
|
作者：
Furst, J. A. [1 ]
Brandbyge, M. [1 ]
Jauho, A. -P. [1 ,2 ]
机构：
[1] Tech Univ Denmark, NanoDTU, Dept Micro & Nanotechnol, DTU Nanotech, DK-2800 Lyngby, Denmark
[2] Aalto Univ, Dept Appl Phys, FI-00076 Aalto, Finland
来源：
EPL | 2010年 / 91卷 / 03期
关键词：
GRAPHENE; NANOTUBE; STATE;
D O I：
10.1209/0295-5075/91/37002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
An atomic carbon chain joining two graphene flakes was recently realized in a ground-breaking experiment by Jin et al. (Phys. Rev. Lett., 102 (2009) 205501). We present ab initio results for the electron transport properties of such chains and demonstrate complete spin-polarization of the transmission in large energy ranges. The effect is due to the spin-polarized zig-zag edge terminating each graphene flake causing a spin-splitting of the graphene pi(z) bands, and the chain states. Transmission occurs when the graphene p-states resonate with similar states in the strongly hybridized edges and chain. This effect should in general hold for any p-conjugated molecules bridging the zig-zag edges of graphene electrodes. The polarization of the transmission can be controlled by chemically or mechanically modifying the molecule, or by applying an electrical gate. Copyright (c) EPLA, 2010
引用
收藏
页数：5
相关论文
共 50 条
  • [1] Spin transport in carbon nanotubes bundles: An ab-initio study
    Meena, Shweta
    Choudhary, Sudhanshu
    [J]. PHYSICS LETTERS A, 2017, 381 (39) : 3431 - 3439
  • [2] Ab initio study of linear atomic chains in copper nanowires
    Amorim, E. P. M.
    da Silva, E. Z.
    [J]. PHYSICAL REVIEW B, 2010, 81 (11)
  • [3] Ab initio study of the addition of atomic carbon with water
    Hwang, DY
    Mebel, AM
    Wang, BC
    [J]. CHEMICAL PHYSICS, 1999, 244 (2-3) : 143 - 149
  • [4] Ab Initio Study of Al Atomic Chains with Na Impurity Atom
    Furuya, Shinnosuke
    Gohda, Yoshihiro
    Watanabe, Satoshi
    [J]. E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY, 2006, 4 : 570 - 573
  • [5] Ab initio study of canted magnetism of finite atomic chains at surfaces
    Lazarovits, B.
    Újfalussy, B.
    Szunyogh, L.
    Stocks, G.M.
    Weinberger, P.
    [J]. J Phys Condens Matter, 1600, 48 (S5833-S5840):
  • [6] Ab initio study of the formation of structural kinks in carbon chains
    Korobova Y.G.
    Bazhanov D.I.
    [J]. Journal of Surface Investigation, 2013, 7 (03): : 479 - 484
  • [7] Ab initio investigations on ballistic transport through carbon atomic chains attached to armchair and zigzag edged graphene electrodes
    Ambavale, S. K.
    Sharma, A. C.
    [J]. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2012, 249 (01): : 107 - 112
  • [8] Ab initio study of spin-dependent transport in carbon nanotubes with iron and vanadium adatoms
    Furst, Joachim A.
    Brandbyge, Mads
    Jauho, Antti-Pekka
    Stokbro, Kurt
    [J]. PHYSICAL REVIEW B, 2008, 78 (19)
  • [9] Effect of hydrogen on the formation of the atomic structure of linear carbon chains: An ab initio approach
    J. G. Korobova
    D. I. Bazhanov
    [J]. JETP Letters, 2011, 93 : 652 - 656
  • [10] Effect of hydrogen on the formation of the atomic structure of linear carbon chains: An ab initio approach
    Korobova, J. G.
    Bazhanov, D. I.
    [J]. JETP LETTERS, 2011, 93 (11) : 652 - 656
12345