We report on a study of core-level photoemission spectroscopy and scan
ning tunneling microscopy of dysprosium silicide grown on n-type Si(11
1). The structure of the silicide was found to be different for submon
olayers and thicker films. In the monolayer regime, an extremely low S
chottky-barrier height was observed, (C) 1998 Elsevier Science B.V.