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  • Abraham Jorge

    Date: 2025-07-25 20:27

    Fitting of the Pb 4f photoemission spectrum for the element (research grade), data were provided by Vincent Crist (The use of the spectrum requires acknowledging XPS library website, https://xpslibrary.com/, the data is copyrighted). The main peak was modeled with a doublet correlated with the DL line shape, in addition to a double Gaussian. This line shape best resolves the slopes of the peaks after the CR line shape. The total background was modeled with a combination of a Tougaard type background and the interchannel coupling with valence band losses background.
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    Files :

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    Information about the sample:

    • Shape: Flat surface

    • Sample material: Pb

    • Elements: Pb

    • Sample composition: Pb

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    • Pass energy: 4.3

    • Take-off angle: 90

    Equipment and analysis software:

    • Software used: AAnalyzer

    AAnalyzer_1185_image_0.jpg

    0 votes

  • Abraham Jorge

    Date: 2025-07-25 20:22

    Fitting of the Pb 4f photoemission spectrum for the element (research grade), data were provided by Vincent Crist (The use of the spectrum requires acknowledging XPS library website, https://xpslibrary.com/, the data is copyrighted). The main peak was modeled with two Voigt doublets and a Gaussian doublet, but despite this, it was not possible to resolve the maximum of the 7/2 and 5/2 components, in addition to the slopes after 140 eV. The total background was modeled with a combination of a Tougaard type background and the interchannel coupling with valence band losses background.
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    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat surface

    • Sample material: Pb

    • Elements: Pb

    • Sample composition: Pb

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    • Pass energy: 4.3

    • Take-off angle: 90

    Equipment and analysis software:

    • Software used: AAnalyzer

    AAnalyzer_1184_image_0.jpg

    0 votes

  • Abraham Jorge

    Date: 2025-07-25 20:14

    Fitting of the Pb 4f photoemission spectrum for the element (research grade), data were provided by Vincent Crist (The use of the spectrum requires acknowledging XPS library website, https://xpslibrary.com/, the data is copyrighted). The main peak was a D&S doublet, and a Gaussian doublet was also used, but the D&S line shape is not capable of modeling the maximum of the peaks or the slope after 140 eV.
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    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat surface

    • Sample material: Pb

    • Elements: Pb

    • Sample composition: Pb

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    • Pass energy: 4.3

    • Take-off angle: 90

    Equipment and analysis software:

    • Software used: AAnalyzer

    AAnalyzer_1183_image_0.jpg

    0 votes

  • Abraham Jorge

    Date: 2025-07-25 20:08

    Fitting of the Pb 4f photoemission spectrum for the element (research grade), data were provided by Vincent Crist (The use of the spectrum requires acknowledging XPS library website, https://xpslibrary.com/, the data is copyrighted). The main peak was modeled with a doublet correlated with a Coupled-Resonances type III line shape. The total background was modeled with a combination of a Tougaard type background and the interchannel coupling with valence band losses background.
    Read more

    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat surface

    • Sample material: Pb

    • Elements: Pb

    • Sample composition: Pb

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    • Pass energy: 4.3

    • Take-off angle: 90

    Equipment and analysis software:

    • Software used: AAnalyzer

    AAnalyzer_1182_image_0.jpg

    0 votes

  • Abraham Jorge

    Date: 2024-08-17 21:55

    Lead adjustment with a little oxide, made with a correlated doublet and the shape of the double Lorentzian curve with a narrow Shirley background
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    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat surface

    • Sample material: Pb

    • Elements: Pb

    • Sample composition: Pb

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    Equipment and analysis software:

    • Software used: aanalyzer

    aanalyzer_909_image_14.jpg

    0 votes

  • Dulce María

    Date: 2022-05-10 21:17

    Fitting of the Pb 4f photoemission spectrum for a poly crystalline surface, data were published by Engelhard and Baer. (accession #0057402). The main photoemission line was fitted using an asymmetric Double-Lorentzian doublet. The branching ratio was forced to be equal to the theoretically expected value (0.7863), which was taken from the Scofield tables. Data were obtained from: Mark Engelhard and Don Baer , "Third Row Transition Metals by X-ray Photoelectron Spectroscopy", Surface Science Spectra 7, 1-68 (2000) https://doi.org/10.1116/1.1311915
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    Information about the sample:

    • Shape: Otherpolycrystal

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    • Pass energy: 23.5

    Equipment and analysis software:

    • Brand: Physical Electronics, Incorporated Quantum 2000

    • Model: 11-066

    • Spectrometer mode: constant pass energy

    • Software used: AAnalyzer

    xpsoasis_580_image_100.jpg

    0 votes

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Dr. Abraham Jorge Carmona Carmona

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Fitting of the Pb 4f from a Pb polycrystal

Fitting of the Pb 4f photoemission spectrum from pure Lead using a CR Type III lineshape

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