ANGLE-RESOLVED PHOTOEMISSION-STUDY OF THE LI-INDUCED STRUCTURES OF THE SI(001) SURFACE
SCIE
SCOPUS
- Title
- ANGLE-RESOLVED PHOTOEMISSION-STUDY OF THE LI-INDUCED STRUCTURES OF THE SI(001) SURFACE
- Authors
- SHIN, KS; KIM, CY; CHUNG, JW
- Date Issued
- 1995-01
- Publisher
- SPRINGER VERLAG
- Abstract
- We have investigated dispersion relations of surface bands induced by Li adsorption on the Si(001) surface at room temperature by Angle-Resolved PhotoEmission Spectroscopy (ARPES). The characteristic spectral changes in the Energy Distribution Curves (EDCs) with increasing Li coverage implicate that Li adatoms occupy on-top sites of the dimer-forming silicon atoms resulting in 0.5 and 1.0 monolayers for the completion of the first two Li-induced ordered (2 x 2):Li and (2 x 1):Li phase, respectively. The unique upward dispersions of the surface bands for these Li-induced structures are ascribed to the size effect of a Li adatom. We further discuss a mechanism which might account for the metallic peak found at the early stage of Li adsorption.
- Keywords
- ALKALI-METAL ADSORPTION; PHOTOELECTRON-SPECTROSCOPY; SEMICONDUCTOR SURFACES; ELECTRONIC-PROPERTIES; STATES; TRANSITION; SI(100)
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/21855
- DOI
- 10.1007/BF01577610
- ISSN
- 0721-7250
- Article Type
- Article
- Citation
- APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, vol. 60, no. 1, page. 35 - 40, 1995-01
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