INVESTIGADORES
PASSEGGI mario Cesar Guillermo
artículos
Título:
Adsorption of potassium on GaAs(110)
Autor/es:
GAYONE, J.E.; SÁNCHEZ, E.A.; GRIZZI, O.; PASSEGGI JR., M.C.G.; VIDAL, R.A.; FERRÓN, J.
Revista:
SURFACE SCIENCE
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2000 vol. 454 p. 137 - 140
ISSN:
0039-6028
Resumen:
The adsorption of potassium on the GaAs(110) surface has been studied by ion scattering and recoiling spectroscopy (SARS) and Auger electron spectroscopy (AES). The SARS measurements indicate that a major part of the potassium atoms adsorb along the [001] gallium rows, in a region close to the sites of a new arsenic layer, and that only a minor part of the potassium atoms adsorb along the [001] arsenic rows. In agreement with this suggestion, the energy shifts in the substrate Auger peaks indicate that, at the beginning of the adsorption, the potassium atoms react preferentially with gallium atoms.
