Jm. Ballesteros et al., ANGULAR-DISTRIBUTION OF OXIDE-FILMS DEPOSITED BY MULTI-COMPONENT OR SINGLE-COMPONENT LASER-ABLATION, Applied surface science, 110, 1997, pp. 322-326
Citations number
12
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical","Materials Science, Coatings & Films
The angular distribution of Bi-Ge-O and Ge-O films prepared by pulsed
laser deposition in an oxygen pressure has been studied for different
target-substrate distances using two configurations: ablation of multi
-component (Bi12GeO20 (EGO) and GeO2) and single-component (Bi and Ge)
targets. The results show that the angular distribution of Bi-Ge-O fi
lms obtained by alternate ablation of single-component targets is narr
ower than the one obtained by ablation of the multi-component target.
In the case of Ge-O films, in which the multi-component target contain
s only one cation (Ge), no significant dependence of the angular distr
ibution on the ablation configuration was observed, The results are di
scussed in terms of the existence of intraplume effects which enhance
the broadening effect due to the atmosphere when ablating multi-compon
ent targets with two or more cations.