Dr. Alberto Herrera

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  • This post is for a peak-fitting test for students of the Universidad Autonoma de Queretaro.

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    Files :

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    Information about the sample:

    • Shape: Flat surface

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    p_Si 2p with one plasmon.fil.jpeg
  • Fitting exercise for the Material's Characterization Course at the Universidad Autónoma de Querétaro

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    Information about the sample:

    • Shape: Flat surface

    • Sample material: SiC on silicon

    • Elements: Si, C, O

    • Sample composition: SiC/Si

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 10

    • Take-off angle: 85

    Equipment information:

    • Brand: ThermoFisher

    • Model: Alpha 110

    • Spectrometer mode: small area, large angle

    Some.png
  • The red, fushia, and olive-green peaks correspond to the 1+, 2+, and 3+ suboxides (parameters from Himpsel et al. Surf. Inter. Anal. 21. 44-50 (1994)). The green peak is the ST peak described in the paper titled "The ST component in the Si 2p photoemission spectrum from clean and oxidized Si [001] surfaces" (to be publish).

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    Files :

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    Information about the sample:

    • Shape: Flat Surface

    • Sample material: silicon oxide layer

    • Elements: Si, O

    • Sample composition: SiO2, Si

    .jpeg
  • Data from Vince Crist (https://xpslibrary.com/b-vincent-crist-ceo/). The spectrum is good enough to determine the Lorentzian width, which resulted different from bulk silicon. (US Government data copyright number TX 4-560-881.)

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    Files :

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    Information about the sample:

    • Sample material: Quartz

    • Elements: Si, O

    • Sample composition: SiO2

    Equipment information:

    • Brand: Kratos

    • Software used: Analyzer

    Some_image
  • please propose a fit

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    Information about the sample:

    • Sample material: covellite

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    Some.png
  • please propose a fit

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    Information about the sample:

    • Sample material: ZnS

    • Elements: Zn, S

    • Sample composition: ZnS

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 10

    Some.png
  • please propose a fit

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    Information about the sample:

    • Sample material: SnS

    • Sample composition: SnS

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    Some.png
  • Fitting exercise for the Material's Characterization course at the Universidad Autónoma de Querétaro

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    Files :

      You must be logged-in to download data

    Information about the sample:

    • Shape: Flat surface

    • Sample material: clean Au film on Si

    • Elements: Au

    • Sample composition: Au

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 10

    • Take-off angle: 90

    Equipment information:

    • Brand: ThermoFisher

    • Model: Alpha 110

    • Spectrometer mode: small area, large angle

    Some.png
  • This fit is a slight variation of that published in Surf. Interface Anal. 52, 591-599 (2020). https://doi.org/10.1002/sia.6796. The fit is very complex; this is why, even though Fe 2p is widely studied core level, its fit hadn't been reported before 2020. This is the result of a simultaneous fit to iron films of different thicknesses, resulting in a robust fit.

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    Files :

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    Information about the sample:

    • Shape: Flat Surface

    • Sample material: metallic iron

    • Elements: Fe

    • Sample composition: Fe

    Data acquisition parameters:

    • Pass energy: 15

    • Take-off angle: 90

    Equipment information:

    • Brand: ThermoFisher

    • Model: Alpha 110

    • Spectrometer mode: small area, large angle

    • Software used: Analyzer

    .jpeg
  • The red, fushia, and olive-green peaks correspond to the 1+, 2+, and 3+ suboxides (parameters from Himpsel et al. Surf. Inter. Anal. 21. 44-50 (1994)). The green peak is the ST peak described in the paper titled "The ST component in the Si 2p photoemission spectrum from clean and oxidized Si [001] surfaces" (to be publish).

    Read more

    Files :

      You must be logged-in to download data

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: silicon oxide layer

    • Elements: Si, O

    • Sample composition: SiO2, Si

    .jpeg
  • Data from Vince Crist (https://xpslibrary.com/b-vincent-crist-ceo/). The spectrum is good enough to determine the Lorentzian width, which resulted different from bulk silicon. (US Government data copyright number TX 4-560-881.)

    Read more

    Files :

      You must be logged-in to download data

    Information about the sample:

    • Sample material: Quartz

    • Elements: Si, O

    • Sample composition: SiO2

    Equipment information:

    • Brand: Kratos

    • Software used: Analyzer

    Some_image
  • This fit is a slight variation of that published in Surf. Interface Anal. 52, 591-599 (2020). https://doi.org/10.1002/sia.6796. The fit is very complex; this is why, even though Fe 2p is widely studied core level, its fit hadn't been reported before 2020. This is the result of a simultaneous fit to iron films of different thicknesses, resulting in a robust fit.

    Read more

    Files :

      You must be logged-in to download data

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: metallic iron

    • Elements: Fe

    • Sample composition: Fe

    Data acquisition parameters:

    • Pass energy: 15

    • Take-off angle: 90

    Equipment information:

    • Brand: ThermoFisher

    • Model: Alpha 110

    • Spectrometer mode: small area, large angle

    • Software used: Analyzer

    .jpeg

Ni oxidation

Public • 4 Member • 0 Post

Created by

Dr. Alberto Herrera

Since 2021-04-26 18:09

Description

study of the early stages of the oxidation of metallic nickel

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Full name:

Alberto Herrera

Title:

Doctor

organization:

Cinvestav

Country:

Mexico

This user is:

Developer

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Number of post in database:

3

Number of post:

Total: 4

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