MuMag2022: a software tool for analyzing magnetic field dependent unpolarized small‐angle neutron scattering data of bulk ferromagnets. Issue 4 (28th July 2022)

• Record Type: Journal Article
• Authors: Adams, Michael P.; Bersweiler, Mathias; Jefremovas, Elizabeth M.; Michels, Andreas
• Is Part Of: Journal of applied crystallography. Volume 55:Issue 4(2022)
• Page Start: 1055
• Page End: 1062
• Publication Date: 2022-07-28
• Subjects: small‐angle neutron scattering -- micromagnetism -- magnetic materials -- nanocomposites; Crystallography -- Periodicals; 548.05
• DOI: 10.1107/S1600576722005349
• Languages: English
• ISSNs: 0021-8898

Abstract

Abstract : The MATLAB‐based software tool MuMag2022 is presented for the analysis of magnetic‐field‐dependent unpolarized small‐angle neutron scattering data of bulk ferromagnets such as elemental nanocrystalline ferromagnets, magnetic nanocomposites or magnetic steels. Abstract : The MATLAB‐based software tool MuMag2022 is presented for the analysis of magnetic‐field‐dependent unpolarized small‐angle neutron scattering (SANS) data of bulk ferromagnets such as elemental nanocrystalline ferromagnets, magnetic nanocomposites or magnetic steels. On the basis of the micromagnetic theory for the magnetic SANS cross section, the program analyzes unpolarized total (nuclear and magnetic) SANS data within the approach‐to‐saturation regime. The main features of MuMag2022 are the estimation of the exchange‐stiffness constant, and of the strength and spatial structure of the magnetic anisotropy field and the magnetostatic field due to longitudinal magnetization fluctuations. MuMag2022 is open source and available as a standalone executable for Windows at https://mumag.uni.lu .