ISSN:
1432-0630
Schlagwort(e):
PACS: 81.15.Fg; 52.40.Mj; 52.40.Na
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Maschinenbau
,
Physik
Notizen:
Abstract. The most prominent phenomena on the target surface induced by laser irradiation in pulsed laser deposition is the formation of conical morphologies in the irradiated area. The conical morphologies formed under different laser fluences and the ambient oxygen pressures in KrF laser ablation of Pb(Zr0.53Ti0.47)O3 were studied in detail by using scanning electron microscopy. The results indicate that, depending on the melting extent of the irradiated surface, there are two kinds of cones: one type with well-defined cone tip and cone body and the other having only a cone tip. Pb is very deficient in cone tip. The gas ambient pressure plays a remarkable role in the laser–target interaction. These results are interpreted by employing the impurity shielding mechanism and the surface instability mechanism.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/s003390051460
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