Multilayer adsorption of Li on Si(100)2 x 1 surfaces studied with metastable de-excitation spectroscopy and thermal desorption spectroscopy

Citation
S. Hongo et al., Multilayer adsorption of Li on Si(100)2 x 1 surfaces studied with metastable de-excitation spectroscopy and thermal desorption spectroscopy, SURF SCI, 435, 1999, pp. 775-778
Citations number
17
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
SURFACE SCIENCE
ISSN journal
0039-6028 → ACNP
Volume
435
Year of publication
1999
Pages
775 - 778
Database
ISI
SICI code
0039-6028(19990802)435:<775:MAOLOS>2.0.ZU;2-4
Abstract
The multilayer adsorption of Li on Ta foil and Li on Si(100)2 x 1 surfaces is discussed, based on the experimental data of thermal desorption spectros copy and metastable de-excitation spectroscopy. Taking the former results o f Ba adsorption on Si(100)2 x 1 into account, it can be understood that abo ve about 1 ML of Li coverage, intermixing or silicide formation starts at r oom temperature. However, the outermost surface adsorbed by more than 3.3 M L is like pure Li. When this sample (with an adsorption of more than 3.3 ML of Li and with a surface like that of pure Li) is heated to 250 degrees C, its outermost surface is changed into silicide. (C) 1999 Elsevier Science B.V. All rights reserved.