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Raman Spectroscopy of Siderite with q-Gaussian and split-q-Gaussian Analyses

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  • Amelia Carolina Sparavigna

Abstract

In a previous review, ChemRxiv, 2023, we have considered the iron oxides and their related Raman spectra; in the review, fingerprints of Magnetite, Maghemite, Hematite, Goethite, Lepidocrocite, Akaganeite and Siderite have been given and the q-Gaussian fitting of some Magnetite, Hematite and Lepidocrocite Raman bands has been proposed too. Here we consider one of the Raman bands of Siderite and its fitted q-Gaussian and split-q-Gaussian functions in depth. In the RRUFF database six natural siderite samples are included, and for three of them we can find Raman spectra obtained with different excitation lasers. These spectra allow us to investigate in detail the behavior of the fitted q-Gaussian curves. A discussion about the origin of asymmetry is also proposed, relevant for the use of q-Gaussians and the interpretation of them in the framework of Kubo approach.

Suggested Citation

  • Amelia Carolina Sparavigna, 2024. "Raman Spectroscopy of Siderite with q-Gaussian and split-q-Gaussian Analyses," International Journal of Sciences, Office ijSciences, vol. 13(02), pages 8-21, February.
    • Handle: RePEc:adm:journl:v:13:y:2024:i:2:p:8-21
    DOI: 10.18483/ijSci.2747
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    References listed on IDEAS

    as
    1. Amelia Carolina Sparavigna, 2023. "q-Gaussian Tsallis Line Shapes and Raman Spectral Bands," International Journal of Sciences, Office ijSciences, vol. 12(03), pages 27-40, March.
    2. Amelia Carolina Sparavigna, 2023. "Iron Oxide Fe3O4 Nanoparticles with Intrinsic Conducting Polymers and Biochar to Improve the Electromagnetic Shielding Performance of Light Weight Absorption-Type Materials," International Journal of Sciences, Office ijSciences, vol. 12(08), pages 5-23, August.
    3. Amelia Carolina Sparavigna, 2024. "Kubo Lineshape and its Fitted q-Gaussian Tsallis Function," International Journal of Sciences, Office ijSciences, vol. 13(01), pages 1-9, January.
    4. R. Hanel & S. Thurner & C. Tsallis, 2009. "Limit distributions of scale-invariant probabilistic models of correlated random variables with the q-Gaussian as an explicit example," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 72(2), pages 263-268, November.
    5. Devi, Sandhya, 2021. "Asymmetric Tsallis distributions for modeling financial market dynamics," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 578(C).
    6. Sandhya Devi, 2021. "Asymmetric Tsallis distributions for modelling financial market dynamics," Papers 2102.04532, arXiv.org.
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    Cited by:

    1. Amelia Carolina Sparavigna, 2024. "Graphene, Graphene Oxide and Carbon Nanotubes in Raman Spectroscopy," International Journal of Sciences, Office ijSciences, vol. 13(07), pages 1-26, July.

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