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Journal Article

Correlation of surface core levels and structural building blocks for the Si(111)-7×7 reconstruction through high-resolution core-level spectroscopy

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Paggel,  Jens
Fritz Haber Institute, Max Planck Society;

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Theis,  Wolfgang
Fritz Haber Institute, Max Planck Society;

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Horn,  Karsten
Fritz Haber Institute, Max Planck Society;

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PhysRevB.50.18686.pdf
(Publisher version), 232KB

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Citation

Paggel, J., Theis, W., Horn, K., Jung, C., Hellwig, C., & Petersen, H. (1994). Correlation of surface core levels and structural building blocks for the Si(111)-7×7 reconstruction through high-resolution core-level spectroscopy. Physical Review B, 50(24), 18 686-18 689. doi:10.1103/PhysRevB.50.18686.


Cite as: https://hdl.handle.net/21.11116/0000-0009-9ADE-0
Abstract
The Si(111)-7×7 reconstruction is investigated by high-resolution core-level spectroscopy. A detailed line-shape analysis of spectra recorded over a wide photon energy range demonstrates the presence of four surface-derived components in the Si 2p line. These are attributed to the structural building blocks of the (7×7) structure through their relative intensities, evaluated for different photon energies in order to take photoelectron-diffraction effects into account, and on the basis of temperature-dependent changes in line shape that occur in the (7×7)-(1×1) phase transition at around 1130 K.