JOURNAL ARTICLE

Development and application of a three-dimensional pseudo-Voigt function for muon spin relaxation analysis of weakly magnetic materials.

  • Published In: Review of Scientific Instruments, 2024, v. 95, n. 5. P. 1 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Umar, M. D.; Hariyanto, H. L.; Absor, M. A. U. 3 of 3

Abstract

The article focuses on developing a three-dimensional pseudo-Voigt function to analyze muon spin relaxation (μSR) in weakly magnetic materials. This function approximates the Voigt distribution by combining Gaussian and Lorentzian components with matching peak and Half Width at Half Maximum (HWHM), enabling efficient modeling of internal magnetic fields at muon sites. The approach is applied to μSR data from La₂₋ₓSrₓCuO₄ with 2.4% Sr, showing good agreement with exact Voigt-based analyses across 30–200 K, with minor deviations below 30 K. The study highlights the pseudo-Voigt function's computational advantages and potential for extension to anisotropic cases, while acknowledging the need for further refinement to improve accuracy considering magnetic field effects.

Additional Information

  • Source:Review of Scientific Instruments. 2024/05, Vol. 95, Issue 5, p1
  • Document Type:Article
  • Subject Area:Science
  • Publication Date:2024
  • ISSN:0034-6748
  • DOI:10.1063/5.0156751
  • Accession Number:177608895
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