Pulsed laser ablation of LaSrCoO

Edward A.F. Span; Frank J.G. Roesthuis; Dave H.A. Blank; Horst Rogalla

doi:10.1016/S0169-4332(99)00242-1

Pulsed laser ablation of LaSrCoO

Edward A.F. Span^*
, Frank J.G. Roesthuis
, Dave H.A. Blank
, Horst Rogalla

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

The ablation process of La0.5Sr0.5CoO3 by a spatial uniform 248 nm excimer laser beam has been characterized. Ablation rates, changes in the target surface morphology and composition have been studied as a function of the laser fluence. The dependence of the ablation rate on the laser fluence has been explained by a model based on plasma absorption. The threshold fluence for complete dissociation of the surface has been determined and is found equal to 0.7 J/cm2. Above this threshold, a steady-state target surface condition is obtained within 30 pulses. Below the threshold fluence, CoO nuclei form, which have a pronounced effect on the target composition and morphology. In addition, ellipsometric and reflectance spectra have been measured in the photon energy range of 1.8 to 5.0 eV.

Original language	English
Pages (from-to)	171-177
Number of pages	7
Journal	Applied surface science
Volume	150
Issue number	1-4
DOIs	https://doi.org/10.1016/S0169-4332(99)00242-1
Publication status	Published - 1999

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2024 OA procedure

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10.1016/S0169-4332(99)00242-1

ArticleFinal published version, 1.66 MBLicence: Taverne

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title = "Pulsed laser ablation of LaSrCoO",

abstract = "The ablation process of La0.5Sr0.5CoO3 by a spatial uniform 248 nm excimer laser beam has been characterized. Ablation rates, changes in the target surface morphology and composition have been studied as a function of the laser fluence. The dependence of the ablation rate on the laser fluence has been explained by a model based on plasma absorption. The threshold fluence for complete dissociation of the surface has been determined and is found equal to 0.7 J/cm2. Above this threshold, a steady-state target surface condition is obtained within 30 pulses. Below the threshold fluence, CoO nuclei form, which have a pronounced effect on the target composition and morphology. In addition, ellipsometric and reflectance spectra have been measured in the photon energy range of 1.8 to 5.0 eV.",

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author = "Span, \{Edward A.F.\} and Roesthuis, \{Frank J.G.\} and Blank, \{Dave H.A.\} and Horst Rogalla",

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doi = "10.1016/S0169-4332(99)00242-1",

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pages = "171--177",

journal = "Applied surface science",

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TY - JOUR

T1 - Pulsed laser ablation of LaSrCoO

AU - Span, Edward A.F.

AU - Roesthuis, Frank J.G.

AU - Blank, Dave H.A.

AU - Rogalla, Horst

PY - 1999

Y1 - 1999

N2 - The ablation process of La0.5Sr0.5CoO3 by a spatial uniform 248 nm excimer laser beam has been characterized. Ablation rates, changes in the target surface morphology and composition have been studied as a function of the laser fluence. The dependence of the ablation rate on the laser fluence has been explained by a model based on plasma absorption. The threshold fluence for complete dissociation of the surface has been determined and is found equal to 0.7 J/cm2. Above this threshold, a steady-state target surface condition is obtained within 30 pulses. Below the threshold fluence, CoO nuclei form, which have a pronounced effect on the target composition and morphology. In addition, ellipsometric and reflectance spectra have been measured in the photon energy range of 1.8 to 5.0 eV.

AB - The ablation process of La0.5Sr0.5CoO3 by a spatial uniform 248 nm excimer laser beam has been characterized. Ablation rates, changes in the target surface morphology and composition have been studied as a function of the laser fluence. The dependence of the ablation rate on the laser fluence has been explained by a model based on plasma absorption. The threshold fluence for complete dissociation of the surface has been determined and is found equal to 0.7 J/cm2. Above this threshold, a steady-state target surface condition is obtained within 30 pulses. Below the threshold fluence, CoO nuclei form, which have a pronounced effect on the target composition and morphology. In addition, ellipsometric and reflectance spectra have been measured in the photon energy range of 1.8 to 5.0 eV.

KW - 2024 OA procedure

U2 - 10.1016/S0169-4332(99)00242-1

DO - 10.1016/S0169-4332(99)00242-1

M3 - Article

SN - 0169-4332

VL - 150

SP - 171

EP - 177

JO - Applied surface science

JF - Applied surface science

IS - 1-4

ER -

Pulsed laser ablation of LaSrCoO

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