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Formation of Pt-induced Ge atomic nanowires on Pt/Ge(001): a density functional theory study

(2008) PHYSICAL REVIEW B. 77(24).
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Abstract
Pt deposited onto a Ge(001) surface gives rise to the spontaneous formation of atomic nanowires on a mixed Pt-Ge surface after high-temperature annealing. We study possible structures of the mixed surface and the nanowires by total energy (density functional theory) calculations. Experimental scanning-tunneling microscopy images are compared to the calculated local densities of states. On the basis of this comparison and the stability of the structures, we conclude that the formation of nanowires is driven by an increased concentration of Pt atoms in the Ge surface layers. Surprisingly, the atomic nanowires consist of Ge instead of Pt atoms.
Keywords
Density Functional Theory, SURFACE, AUGMENTED-WAVE METHOD, structure, modelling, STM, Nanowires

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Citation

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Chicago
Vanpoucke, Danny, and Geert Brocks. 2008. “Formation of Pt-induced Ge Atomic Nanowires on Pt/Ge(001): a Density Functional Theory Study.” Physical Review B 77 (24).
APA
Vanpoucke, Danny, & Brocks, G. (2008). Formation of Pt-induced Ge atomic nanowires on Pt/Ge(001): a density functional theory study. PHYSICAL REVIEW B, 77(24).
Vancouver
1.
Vanpoucke D, Brocks G. Formation of Pt-induced Ge atomic nanowires on Pt/Ge(001): a density functional theory study. PHYSICAL REVIEW B. 2008;77(24).
MLA
Vanpoucke, Danny, and Geert Brocks. “Formation of Pt-induced Ge Atomic Nanowires on Pt/Ge(001): a Density Functional Theory Study.” PHYSICAL REVIEW B 77.24 (2008): n. pag. Print.
@article{1104867,
  abstract     = {Pt deposited onto a Ge(001) surface gives rise to the spontaneous formation of atomic nanowires on a mixed Pt-Ge surface after high-temperature annealing. We study possible structures of the mixed surface and the nanowires by total energy (density functional theory) calculations. Experimental scanning-tunneling microscopy images are compared to the calculated local densities of states. On the basis of this comparison and the stability of the structures, we conclude that the formation of nanowires is driven by an increased concentration of Pt atoms in the Ge surface layers. Surprisingly, the atomic nanowires consist of Ge instead of Pt atoms.},
  articleno    = {241308},
  author       = {Vanpoucke, Danny and Brocks, Geert},
  issn         = {1098-0121},
  journal      = {PHYSICAL REVIEW B},
  keyword      = {Density Functional Theory,SURFACE,AUGMENTED-WAVE METHOD,structure,modelling,STM,Nanowires},
  language     = {eng},
  number       = {24},
  pages        = {4},
  title        = {Formation of Pt-induced Ge atomic nanowires on Pt/Ge(001): a density functional theory study},
  url          = {http://dx.doi.org/10.1103/PhysRevB.77.241308},
  volume       = {77},
  year         = {2008},
}

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