We report K L 23 edge X-ray absorption spectra (XAS, both normal and grazing incidence) and photoelectron spectra (XPS) for K/Si(111)-(2 × 1) at three different coverages (0.1, 0.3 and 0.5 ML). The data show features which exhibit a very strong variation in both the energy, intensity, and line shape with incidence angle and coverage. Some of these features correspond to charge-transfer satellites and give a measure of the hybridization of the ground state. They indicate very ionic bonding. © 1994 IOP Publishing Ltd.
Charge-Transfer satellites in K L 23 XAS Data for K/Si(111)-(2 × 1): Evidence for strong ionic bonds / D'Addato, S.; Ramaker, D. E.; Cosso, R.; Gregory, D.; Morrison, T. P.; Unsworth, P.; Duo, L.; Panaccione, G.; Nannarone, S.; Weightman, P.. - In: EUROPHYSICS LETTERS. - ISSN 0295-5075. - 26:2(1994), pp. 85-90. [10.1209/0295-5075/26/2/002]
Charge-Transfer satellites in K L 23 XAS Data for K/Si(111)-(2 × 1): Evidence for strong ionic bonds
D'Addato S.;Nannarone S.;
1994
Abstract
We report K L 23 edge X-ray absorption spectra (XAS, both normal and grazing incidence) and photoelectron spectra (XPS) for K/Si(111)-(2 × 1) at three different coverages (0.1, 0.3 and 0.5 ML). The data show features which exhibit a very strong variation in both the energy, intensity, and line shape with incidence angle and coverage. Some of these features correspond to charge-transfer satellites and give a measure of the hybridization of the ground state. They indicate very ionic bonding. © 1994 IOP Publishing Ltd.
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