Theoretical study of the electron transport in the molecular contact

被引:3
|
作者
Niu Xiu-Ming [1 ]
Qi Yuan-Hua [2 ]
机构
[1] Shandong Med Coll, Jinan 250002, Peoples R China
[2] Shandong Univ, Sch Phys & Microelect, Jinan 250010, Peoples R China
关键词
molecular contact; electron transportation; non-equilibrium Green functions; transmission spectrum;
D O I
10.7498/aps.57.6926
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Based on the density functional theory (DFF) and non-equilibrium Green function (NEGF) method, we present calculations of the electron transport properties of a hydrogen molecule contacting two Pt micro-electrodes. The conductance we obtained agrees well with that of the experiment. The conceptual picture of Feynman path is used to explain our result. The local states of the contact are related to the peaks of the transmission spectrum.
引用
收藏
页码:6926 / 6931
页数:6
相关论文
共 18 条
  • [1] Density-functional method for nonequilibrium electron transport -: art. no. 165401
    Brandbyge, M
    Mozos, JL
    Ordejón, P
    Taylor, J
    Stokbro, K
    [J]. PHYSICAL REVIEW B, 2002, 65 (16) : 1654011 - 16540117
  • [2] GROUND-STATE OF THE ELECTRON-GAS BY A STOCHASTIC METHOD
    CEPERLEY, DM
    ALDER, BJ
    [J]. PHYSICAL REVIEW LETTERS, 1980, 45 (07) : 566 - 569
  • [3] DATTA S, 1995, ELECT TRANSPORT MESO, P163
  • [4] Electronic transport and vibrational modes in a small molecular bridge:: H2 in Pt nanocontacts -: art. no. 041402
    García, Y
    Palacios, JJ
    SanFabián, E
    Vergés, JA
    Pérez-Jiménez, AJ
    Louis, E
    [J]. PHYSICAL REVIEW B, 2004, 69 (04)
  • [5] Evidence for a single hydrogen molecule connected by an atomic chain
    Kiguchi, M.
    Stadler, R.
    Kristensen, I. S.
    Djukic, D.
    van Ruitenbeek, J. M.
    [J]. PHYSICAL REVIEW LETTERS, 2007, 98 (14)
  • [6] Renormalized molecular levels in a Sc3N@C80 molecular electronic device -: art. no. 195402
    Larade, B
    Taylor, J
    Zheng, QR
    Mehrez, H
    Pomorski, P
    Guo, H
    [J]. PHYSICAL REVIEW B, 2001, 64 (19)
  • [7] ELECTRON CONDUCTION IN MOLECULAR WIRES .1. A SCATTERING FORMALISM
    MUJICA, V
    KEMP, M
    RATNER, MA
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1994, 101 (08): : 6849 - 6855
  • [8] SELF-INTERACTION CORRECTION TO DENSITY-FUNCTIONAL APPROXIMATIONS FOR MANY-ELECTRON SYSTEMS
    PERDEW, JP
    ZUNGER, A
    [J]. PHYSICAL REVIEW B, 1981, 23 (10): : 5048 - 5079
  • [9] QI Y, 2007, THESIS SHANDONG U JI
  • [10] How do oxygen molecules move into silver contacts and change their electronic transport properties?
    Qi, Yuanhua
    Guan, Daren
    Jiang, Yuansheng
    Zheng, Yujun
    Liu, Chengbu
    [J]. PHYSICAL REVIEW LETTERS, 2006, 97 (25)