Influence of control and material parameters on island density in early stage of pulsed laser deposition

0388240 - FZÚ 2013 RIV CH eng J - Journal Article
Mašín, Martin - Kotrla, Miroslav
Influence of control and material parameters on island density in early stage of pulsed laser deposition.
Thin Solid Films. Roč. 520, č. 15 (2012), s. 4965-4970. ISSN 0040-6090. E-ISSN 1879-2731
R&D Projects: GA ČR GA202/09/0775
Institutional research plan: CEZ:AV0Z10100520
Keywords : Monte Carlo simulations * pulsed laser deposition * surface diffusion * epitaxy * growth * nucleation
Subject RIV: BE - Theoretical Physics
Impact factor: 1.604, year: 2012

We investigate influence of pulse frequency on the temperature dependence of island densities in pulsed laser deposition on bcc(110) surface using two regimes of pulse frequency variation: one with constant average flux and the other with constant pulse intensity. We found that the effects on studied features in the two regimes are opposite. An increase in the pulse length for a given pulse frequency causes a decrease in the island density; the curve shift towards molecular beam epitaxy results. The increase of the diffusion barrier for non-interacting monomers shifts the whole Arrhenius curve to higher temperatures.
Permanent Link: http://hdl.handle.net/11104/0217064