BULK AND SURFACE METALLIZATION OF CAF2 UNDER LOW-ENERGY-ELECTRON IRRADIATION

Authors
BENNEWITZ R GUNTHER C REICHLING M MATTHIAS E WILSON RM WILLIAMS RT
Citation
R. Bennewitz et al., BULK AND SURFACE METALLIZATION OF CAF2 UNDER LOW-ENERGY-ELECTRON IRRADIATION, Radiation effects and defects in solids, 137(1-4), 1995, pp. 1245-1250
Citations number
13
Categorie Soggetti
Physics, Condensed Matter","Nuclear Sciences & Tecnology
Journal title
Radiation effects and defects in solids → ACNP
ISSN journal
10420150
Volume
137
Issue
1-4
Year of publication
1995
Pages
1245 - 1250
Database
ISI
SICI code
1042-0150(1995)137:1-4<1245:BASMOC>2.0.ZU;2-K
Abstract
Electron irradiation of CaF2 with 2 keV electrons causes metallization of the surface and near surface layers by the formation of colloids. Colloids on the surface are significantly larger than those in the bul k indicating a higher mobility of defects on the surface. Optical spec troscopy on extinction bands of bulk colloids reveals Ostwald ripening as the driving force for aggregation, while scanning force microscopy results suggest that similar processes dominate the early stages of s urface colloid formation.