Local determination of the amount of integration of an atom into a crystal surface

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Volgmann, K.; Gawronski, H.; Zaum, Ch; Rusina, G. G.; Borisova, S. D. et al.: Local determination of the amount of integration of an atom into a crystal surface. In: Nature Communications 5 (2014), 5089. DOI: https://doi.org/10.1038/ncomms6089

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Sum total of downloads: 123

Collective vibrational modes of crystal lattices, called phonons, determine fundamental material properties, such as their thermal and electrical conductivities. Bulk phonon spectra are influenced by point defects. More recently, the importance of phonons on nanostructures has come into the focus of attention. Here we show a spatially resolved phonon spectra of point defects that reveal distinctly different signatures for a cavity alone and an impurity atom fully integrated into the surface as opposed to one placed into a cavity. The spectra are indicative for delocalized phonons and localized vibrations, respectively, as confirmed by theory.
License of this version: CC BY 4.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2014
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 65 52.85%
2 image of flag of United States United States 27 21.95%
3 image of flag of Russian Federation Russian Federation 3 2.44%
4 image of flag of France France 3 2.44%
5 image of flag of Canada Canada 3 2.44%
6 image of flag of Ukraine Ukraine 2 1.63%
7 image of flag of Latvia Latvia 2 1.63%
8 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 2 1.63%
9 image of flag of United Kingdom United Kingdom 2 1.63%
10 image of flag of China China 2 1.63%
    other countries 12 9.76%

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