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一种直接从电子断层扫描图像获取磁形状各向异性的新方法。

A new method for obtaining the magnetic shape anisotropy directly from electron tomography images.

作者信息

Radu Cristian, Vlaicu Ioana D, Kuncser Andrei C

机构信息

National Institute of Materials Physics, Magurele, Romania.

Faculty of Physics, University of Bucharest, Bucharest, Romania.

出版信息

Beilstein J Nanotechnol. 2022 Jul 5;13:590-598. doi: 10.3762/bjnano.13.51. eCollection 2022.

DOI:10.3762/bjnano.13.51
PMID:35874438
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9273981/
Abstract

A new methodology to obtain magnetic information on magnetic nanoparticle (MNP) systems via electron tomography techniques is reported in this work. The new methodology is implemented in an under-development software package called Magn3t, written in Python and C++. A novel image-filtering technique that reduces the highly undesired diffraction effects in the tomography tilt-series has been also developed in order to increase the reliability of the correlations between morphology and magnetism. Using the Magn3t software, the magnetic shape anisotropy magnitude and direction of magnetite nanoparticles has been extracted for the first time directly from transmission electron tomography.

摘要

本文报道了一种通过电子断层扫描技术获取磁性纳米颗粒（MNP）系统磁性信息的新方法。这种新方法在一个名为Magn3t的正在开发的软件包中实现，该软件包用Python和C++编写。还开发了一种新颖的图像滤波技术，以减少断层扫描倾斜序列中极不理想的衍射效应，从而提高形态与磁性之间相关性的可靠性。使用Magn3t软件，首次直接从透射电子断层扫描中提取了磁铁矿纳米颗粒的磁形状各向异性大小和方向。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1352/9273981/07882f70f61a/Beilstein_J_Nanotechnol-13-590-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1352/9273981/4bc50cd958df/Beilstein_J_Nanotechnol-13-590-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1352/9273981/684abc8b28d7/Beilstein_J_Nanotechnol-13-590-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1352/9273981/01ba57a73d2b/Beilstein_J_Nanotechnol-13-590-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1352/9273981/9c46f33937e7/Beilstein_J_Nanotechnol-13-590-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1352/9273981/d9d884cd1569/Beilstein_J_Nanotechnol-13-590-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1352/9273981/07882f70f61a/Beilstein_J_Nanotechnol-13-590-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1352/9273981/4bc50cd958df/Beilstein_J_Nanotechnol-13-590-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1352/9273981/684abc8b28d7/Beilstein_J_Nanotechnol-13-590-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1352/9273981/01ba57a73d2b/Beilstein_J_Nanotechnol-13-590-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1352/9273981/9c46f33937e7/Beilstein_J_Nanotechnol-13-590-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1352/9273981/d9d884cd1569/Beilstein_J_Nanotechnol-13-590-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1352/9273981/07882f70f61a/Beilstein_J_Nanotechnol-13-590-g007.jpg

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