Plume expansion dynamics during laser ablation of manganates in oxygen atmosphere (Articolo in rivista)

Type
Label
  • Plume expansion dynamics during laser ablation of manganates in oxygen atmosphere (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.apsusc.2007.02.041 (literal)
Alternative label
  • Amoruso S.; Sambri A.; Wang X. (2007)
    Plume expansion dynamics during laser ablation of manganates in oxygen atmosphere
    in Applied surface science
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Amoruso S.; Sambri A.; Wang X. (literal)
Pagina inizio
  • 7696 (literal)
Pagina fine
  • 7701 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • Conference: Symposium on Photon-Assisted Synthesis and Processing of Functional Materials held at the 2006 EMRS Spring Meeting Location: Nice, FRANCE Date: MAY 29-JUN 02, 2006. Selected and revised paper. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 253 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 19 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Complesso Univ Monte S Angelo, Univ Naples Federico II, Coherentia CNR, INFM, I-80126 Naples, Italy (literal)
Titolo
  • Plume expansion dynamics during laser ablation of manganates in oxygen atmosphere (literal)
Abstract
  • The effect of ambient gas on the expansion dynamics of the plasma plume generated by excimer laser ablation of a LaMnO3 target is investigated by using fast photography and optical emission spectroscopy. The plume propagation in an oxygen environment is examined with pressure ranging from vacuum to few hundreds Pa. Imaging analysis of the plume emission has allowed following the changes in the plume front dynamics as a function of time and pressure. The expansion dynamics of the plume front is examined by means of a theoretical description of plume evolution and shock-wave propagation in dimensionless variables. Optical emission spectroscopy analysis showed that the oxides are mainly formed in the gas-phase through reaction of the ablated atomic species with ambient oxygen. Moreover, we observed that the formation of oxides is strongly favoured at a pressure level where the formation of a shock-wave occurs. (c) 2007 Elsevier B.V. All rights reserved. (literal)
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