Experimental and theoretical studies of interactions between Si7 clusters

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EurphysjouD45.pdf
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2007
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Gynz-Rekowski, Felix von
Quester, Wolfram
Dietsche, Rainer
Lim, Dong Chan
Bertram, Nils
Schach, Margit
Kim, Young Dok
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The possibility of using magic Si7 clusters to form a cluster material was studied experimentally and theoretically. In experiments Si7 clusters were deposited on carbon surfaces, and the electronic structure and chemical properties of the deposited clusters were measured using X-ray photoelectron spectroscopy (XPS). A non bulk-like electronic structure of Si7 was found in the Si 2p core level spectra. Si7 is suggested to form a more stable structure than the non-magic Si8 cluster and Si atoms upon deposition on carbon surfaces. Theoretically it was possible to study the interaction between the clusters without the effect of a surface. Density functional theory (DFT) calculations of potential curves of two free Si7 clusters approaching each other in various orientations hint at the formation of cluster materials rather than the fusion of clusters forming bulk-like structures.

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ISO 690GYNZ-REKOWSKI, Felix von, Wolfram QUESTER, Rainer DIETSCHE, Dong Chan LIM, Nils BERTRAM, Tim FISCHER, Gerd GANTEFÖR, Margit SCHACH, Peter NIELABA, Young Dok KIM, 2007. Experimental and theoretical studies of interactions between Si7 clusters. In: European Physical Journal / D. 2007, 45, pp. 409-413. Available under: doi: 10.1140/epjd/e2007-00155-0
BibTex
@article{GynzRekowski2007Exper-8925,
  year={2007},
  doi={10.1140/epjd/e2007-00155-0},
  title={Experimental and theoretical studies of interactions between Si7 clusters},
  volume={45},
  journal={European Physical Journal / D},
  pages={409--413},
  author={Gynz-Rekowski, Felix von and Quester, Wolfram and Dietsche, Rainer and Lim, Dong Chan and Bertram, Nils and Fischer, Tim and Ganteför, Gerd and Schach, Margit and Nielaba, Peter and Kim, Young Dok}
}
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