Local Gating of an Ir(111) Surface Resonance by Graphene Islands

被引：40
|
作者：
Altenburg, S. J. [1 ]
Kroeger, J. [2 ]
Wehling, T. O. [3 ]
Sachs, B. [3 ]
Lichtenstein, A. I. [3 ]
Berndt, R. [1 ]
机构：
[1] Univ Kiel, Inst Expt & Angew Phys, D-24098 Kiel, Germany
[2] Tech Univ Ilmenau, Inst Phys, D-98693 Ilmenau, Germany
[3] Univ Hamburg, Inst Theoret Phys 1, D-20355 Hamburg, Germany
来源：
PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 20期
关键词：
SCANNING TUNNELING MICROSCOPE; AUGMENTED-WAVE METHOD; ULTRASOFT PSEUDOPOTENTIALS; METAL-SURFACES; SPECTROSCOPY; DISPERSIONS; STATES;
D O I：
10.1103/PhysRevLett.108.206805
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The influence of graphene islands on the electronic structure of the Ir(111) surface is investigated. Scanning tunneling spectroscopy (STS) indicates the presence of a two-dimensional electron gas with a binding energy of -160 meV and an effective mass of -0.18m(e) underneath single-layer graphene on the Ir(111) surface. Density functional calculations reveal that the STS features are predominantly due to a holelike surface resonance of the Ir(111) substrate. Nanometer-sized graphene islands act as local gates, which shift and confine the surface resonance.
引用
收藏
页数：5
相关论文
共 50 条
  • [1] Onset of three-dimensional Ir islands on a graphene/Ir(111) template
    Feibelman, Peter J.
    PHYSICAL REVIEW B, 2009, 80 (08)
  • [2] Structure and local variations of the graphene moire on Ir(111)
    Hamalainen, Sampsa K.
    Boneschanscher, Mark P.
    Jacobse, Peter H.
    Swart, Ingmar
    Pussi, Katariina
    Moritz, Wolfgang
    Lahtinen, Jouko
    Liljeroth, Peter
    Sainio, Jani
    PHYSICAL REVIEW B, 2013, 88 (20):
  • [3] Orientation-Dependent Growth Mechanisms of Graphene Islands on Ir(111)
    Rogge, P. C.
    Nie, S.
    McCarty, K. F.
    Bartelt, N. C.
    Dubon, O. D.
    NANO LETTERS, 2015, 15 (01) : 170 - 175
  • [4] Reconstructed Fermi surface in graphene on Ir(111) by Gd-Ir surface alloying
    Klimovskikh, I. I.
    Krivenkov, M.
    Varykhalov, A.
    Estyunin, D.
    Shikin, A. M.
    CARBON, 2019, 147 : 182 - 186
  • [5] Momentum-resolved photoelectron absorption in surface barrier scattering on Ir(111) and graphene/Ir(111)
    Zaporozhchenko-Zymakova, A.
    Kutnyakhov, D.
    Medjanik, K.
    Tusche, C.
    Fedchenko, O.
    Chernov, S.
    Ellguth, M.
    Nepijko, S. A.
    Elmers, H. J.
    Schoenhense, G.
    PHYSICAL REVIEW B, 2017, 96 (15)
  • [6] Modification of electronic surface states by graphene islands on Cu(111)
    Hollen, S. M.
    Gambrel, G. A.
    Tjung, S. J.
    Santagata, N. M.
    Johnston-Halperin, E.
    Gupta, J. A.
    PHYSICAL REVIEW B, 2015, 91 (19):
  • [7] Local electronic edge states of graphene layer deposited on Ir(111) surface studied by STM/CITS
    Klusek, Z
    Kozlowski, W
    Waqar, Z
    Datta, S
    Burnell-Gray, JS
    Makarenko, IV
    Gall, NR
    Rutkov, EV
    Tontegode, AY
    Titkov, AN
    APPLIED SURFACE SCIENCE, 2005, 252 (05) : 1221 - 1227
  • [8] Step edge diffusion and the structure of nanometer-size Ir islands on the Ir(111) surface
    Fu, TY
    Tzeng, YR
    Tsong, TT
    SURFACE SCIENCE, 1996, 366 (02) : L691 - L696
  • [9] Step edge diffusion and the structure of nanometer-size Ir islands on the Ir(111) surface
    Academia Sinica, Taipei, Taiwan
    Surf Sci, 2 (L691-L696):
  • [10] Tuning the Graphene on Ir(111) adsorption regime by Fe/Ir surface-alloying
    Brede, Jens
    Slawinska, Jagoda
    Abadia, Mikel
    Rogero, Celia
    Enrique Ortega, J.
    Piquero-Zulaica, Ignacio
    Lobo-Checa, Jorge
    Arnau, Andres
    Iribas Cerda, Jorge
    2D MATERIALS, 2017, 4 (01):
12345