Potassium-induced charge redistribution on Si(111) surfaces studied by core-level photoemission spectroscopy

Journal Article · Sun Mar 15 04:00:00 EST 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.45.5961· OSTI ID:7207065

Ma, Y ^[1]; Chen, C T; Meigs, G; Sette, F ^[2]; Illing, G ^[3]; Shigakawa, H ^[4]

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1. Molecular Science Research Center, Pacific Northwest Laboratories, Richland, Washington 99352 (United States)
2. AT T Bell Laboratories, Murray Hill, New Jersey 07974 (United States)
3. Department of Chemistry, Ruhr University, 4630 Bochum (Germany)
4. Institute of Material Science, University of Tsukuba, Ibaraki 305 (Japan)

High-resolution core-level photoemission spectra of the K/Si(111)(7{times}7) surface system are presented. The Si 2{ital p} results show that potassium adsorption induces a Si 2{ital p} core level to shift to o/Ihighero/P binding energy, i.e., to the opposite direction than that expected from the Si-K electronegativity differences. This result is compared with that of the K/Si(111)({radical}3 {times} {radical}3 ){ital R}30{degree}-B system and is interpreted in terms of the K-induced charge redistribution between the Si-adatom--rest-atom pair.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 7207065
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 45:11; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606* -- Other Materials-- Physical Properties-- (1992-)
ADSORPTION
ALKALI METALS
BINDING ENERGY
CHARGE DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELECTRONIC STRUCTURE
ELEMENTS
EMISSION
ENERGY
IONIZING RADIATIONS
METALS
PHOTOEMISSION
POTASSIUM
RADIATIONS
SECONDARY EMISSION
SEMIMETALS
SILICON
SOFT X RADIATION
SORPTION
SPECTRA
SURFACE PROPERTIES
X RADIATION
X-RAY SPECTRA