| Numéro |
J. Phys. Colloques
Volume 50, Numéro C8, Novembre 1989
36th International Field Emission Symposium
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|---|---|---|
| Page(s) | C8-229 - C8-234 | |
| DOI | https://doi.org/10.1051/jphyscol:1989839 | |
36th International Field Emission Symposium
J. Phys. Colloques 50 (1989) C8-229-C8-234
DOI: 10.1051/jphyscol:1989839
1 STM Group, The Institute for Solid State Physics, The University of Tokyo, Roppongi, Minato-ku, Tokyo 106, Japan
J. Phys. Colloques 50 (1989) C8-229-C8-234
DOI: 10.1051/jphyscol:1989839
SCANNING TUNNELING MICROSCOPY STUDY OF ALKALI METAL ADSORPTION ON THE Si (001) 2x1 SURFACE
Y. HASEGAWA1, T. HASHIZUME1, I. KAMIYA1, T. IDE1, I. SUMITA1, S. HYODO1, T. SAKURAI1, H. TOCHIHARA1, M. KUBOTA1 et Y. MURATA11 STM Group, The Institute for Solid State Physics, The University of Tokyo, Roppongi, Minato-ku, Tokyo 106, Japan
Abstract
Li and K adsorption on the Si(001)2x1 surface has been investigated by field ion-scanning tunneling microscopy (FI-STM). The STM images have shown that at the initial stage of adsorption Li (K) atoms (1) adsorb on top of one of the dimer forming Si surface atoms and stabilize asymmetric (buckled) dimerization and (2) form linear chains, perpendicular to the substrate 2x1 dimer rows. Our observations suggest that alkali metal adsorption on the Si(001)2x1 surface may be significantly different from the conclusions of earlier reports.