ADSORPTION OF C60ON Li-COVERED Ni(110) SURFACES

V. Saltas () and C. A. Papageorgopoulos
Additional contact information
V. Saltas: Department of Physics, University of Ioannina, PO Box 1186, GR-451 10, Ioannina, Greece
C. A. Papageorgopoulos: Department of Physics, University of Ioannina, PO Box 1186, GR-451 10, Ioannina, Greece

Surface Review and Letters (SRL), 2003, vol. 10, issue 01, 73-79

Abstract: In this paper the adsorption of C60on Li-covered Ni(110) surfaces is investigated by means of Auger electron spectroscopy, low-energy electron diffraction and work function measurements, in ultrahigh vacuum. Deposition of C60on the 1 × 2 Li-induced Ni(110) surface at 650 K causes the formation of islands with a 4 × 2 structure, where the C60molecules adsorb along neighboring troughs of the substrate. At higher C60coverages, the Li-induced 1 × 2 reconstruction of the Ni(110) surface is lifted and a 9 × 3 structure is formed, which finally ends in a semihexagonal structure, as in the case of C60adsorption on clean Ni(110) surfaces. AES and LEED measurements suggest that charge is transferred from Li to the C60molecules, which in a rough approximation was estimated to be around one electron per C60molecule. The above estimated charge transfer to the C60molecules is substantially smaller than that we have calculated when Li is adsorbed on C60-covered Ni(110) surfaces. Apparently, the order of Li and C60deposition is very important for the charge transfer and the deposition of Li on C60-covered surfaces provides a substantially greater amount of charge to the C60molecules.

Keywords: Auger electron spectroscopy; low energy electron diffraction; WF measurements; adsorption; C60; lithium; nickel (search for similar items in EconPapers)
Date: 2003
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X03004676
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:10:y:2003:i:01:n:s0218625x03004676

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X03004676

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().