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一种用于分析块状铁磁体的与磁场相关的非极化小角中子散射数据的软件工具。

: a software tool for analyzing magnetic field dependent unpolarized small-angle neutron scattering data of bulk ferromagnets.

作者信息

Adams Michael P, Bersweiler Mathias, Jefremovas Elizabeth M, Michels Andreas

机构信息

Department of Physics and Materials Science, University of Luxembourg, 162A Avenue de la Faïencerie, L-1511 Luxembourg, Grand Duchy of Luxembourg.

Departamento CITIMAC, Facultad de Ciencias, Universidad de Cantabria, 39005 Santander, Spain.

出版信息

J Appl Crystallogr. 2022 Jul 28;55(Pt 4):1055-1062. doi: 10.1107/S1600576722005349. eCollection 2022 Aug 1.

DOI:10.1107/S1600576722005349
PMID:35974724
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9348888/
Abstract

The MATLAB-based software tool 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 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. is open source and available as a standalone executable for Windows at https://mumag.uni.lu.

摘要

本文介绍了一种基于MATLAB的软件工具，用于分析块状铁磁体（如元素纳米晶铁磁体、磁性纳米复合材料或磁性钢）的磁场相关非极化小角中子散射（SANS）数据。该程序基于磁性SANS截面的微磁学理论，在接近饱和状态下分析非极化总（核和磁）SANS数据。其主要特点是估计交换刚度常数，以及由于纵向磁化波动引起的磁各向异性场和静磁场的强度及空间结构。该软件是开源的，可在https://mumag.uni.lu上获取适用于Windows的独立可执行文件。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/5db8fe126b24/j-55-01055-fig8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/09d9f4b9e985/j-55-01055-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/d5262bc4abcb/j-55-01055-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/42c4d8c9bb72/j-55-01055-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/843e575cbf6d/j-55-01055-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/ec99ef24479c/j-55-01055-fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/80f704717bd0/j-55-01055-fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/ef431074a44b/j-55-01055-fig7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/5db8fe126b24/j-55-01055-fig8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/09d9f4b9e985/j-55-01055-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/d5262bc4abcb/j-55-01055-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/42c4d8c9bb72/j-55-01055-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/843e575cbf6d/j-55-01055-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/ec99ef24479c/j-55-01055-fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/80f704717bd0/j-55-01055-fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/ef431074a44b/j-55-01055-fig7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70df/9348888/5db8fe126b24/j-55-01055-fig8.jpg

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本文引用的文献

1
Small-angle neutron scattering by spatially inhomogeneous ferromagnets with a nonzero average uniaxial anisotropy.具有非零平均单轴各向异性的空间非均匀铁磁体的小角中子散射。
J Appl Crystallogr. 2022 Jun 1;55(Pt 3):592-600. doi: 10.1107/S160057672200437X.
2
Unraveling the magnetic softness in Fe-Ni-B-based nanocrystalline material by magnetic small-angle neutron scattering.通过磁性小角中子散射揭示铁镍硼基纳米晶材料中的磁软特性
IUCrJ. 2021 Nov 19;9(Pt 1):65-72. doi: 10.1107/S2052252521010605. eCollection 2022 Jan 1.
3
Magnetic small-angle neutron scattering of bulk ferromagnets.
块状铁磁体的磁性小角中子散射
J Phys Condens Matter. 2014 Sep 24;26(38):383201. doi: 10.1088/0953-8984/26/38/383201. Epub 2014 Sep 2.
4
Range of magnetic correlations in nanocrystalline soft magnets.纳米晶软磁体中的磁关联范围
Phys Rev Lett. 2003 Dec 31;91(26 Pt 1):267204. doi: 10.1103/PhysRevLett.91.267204.