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Three-dimensional magnetization reconstruction from electron optical phase images with physical constraints

文献类型：期刊论文

作者Lyu, Boyao1,7; Zhao, Shihua2,4,9; Zhang, Yibo3,4; Wang, Weiwei5; Zheng, Fengshan6; Dunin-Borkowski, Rafal E.8; Zang, Jiadong4; Du, Haifeng7
刊名SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
出版日期2024-11-01
卷号67
关键词three-dimensional magnetization vector field tomography differentiable programming electron holography micromagnetism
ISSN号1674-7348
DOI10.1007/s11433-024-2448-6
通讯作者Zheng, Fengshan(zhengfs@scut.edu.cn) ; Zang, Jiadong(jiadong.zang@unh.edu) ; Du, Haifeng(duhf@hfml.ac.cn)
英文摘要The ability to characterize three-dimensional (3D) magnetization distributions in nanoscale magnetic materials and devices is essential to fully understand their static and dynamic magnetic properties. Phase contrast techniques in the transmission electron microscope (TEM), such as electron holography and electron ptychography, can be used to record two-dimensional (2D) projections of the in-plane magnetic induction of 3D nanoscale objects. Although the 3D magnetic induction can in principle be reconstructed from one or more tilt series of such 2D projections, conventional tomographic reconstruction algorithms do not recover the 3D magnetization within a sample directly. Here, we use simulations to describe the basis of an improved model-based algorithm for the tomographic reconstruction of a 3D magnetization distribution from one or more tilt series of electron optical phase images recorded in the TEM. The algorithm allows a wide range of physical constraints, including a priori information about the sample geometry and magnetic parameters, to be specified. It also makes use of minimization of the micromagnetic energy in the loss function. We demonstrate the reconstruction of the 3D magnetization of a localized magnetic soliton - a hopfion ring - and discuss the influence of noise, choice of magnetic constants, maximum tilt angle and number of tilt axes on the result. The algorithm can in principle be adapted for other magnetic contrast imaging techniques in the TEM, as well as for other magnetic characterization techniques, such as those based on X-rays or neutrons.
WOS关键词ITERATIVE RECONSTRUCTION ; SPECIMEN HOLDER ; TOMOGRAPHY ; FIELDS ; SHIFT
资助项目National Key R&D Program of China[2022YFA1403603] ; National Natural Science Funds for Distinguished Young Scholars[52325105] ; National Natural Science Foundation of China[12241406] ; National Natural Science Foundation of China[52173215] ; National Natural Science Foundation of China[12374098] ; CAS Project for Young Scientists in Basic Research[YSBR-084] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB33030100] ; Chinese Academy of Sciences[JZHKYPT-2021-08] ; Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, U.S. Department of Energy[DE-SC0020221] ; Fundamental Research Funds for the Central Universities ; National Natural Science Fund for Excellent Young Scientists Fund Program (Overseas)[52373226] ; Xiaomi Young Talents Program ; European Research Council[856538] ; Deutsche Forschungsgemeinschaft[405553726] ; Deutsche Forschungsgemeinschaft[403502830]
WOS研究方向Physics
语种英语
WOS记录号WOS:001317149500001
出版者SCIENCE PRESS
资助机构National Key R&D Program of China ; National Natural Science Funds for Distinguished Young Scholars ; National Natural Science Foundation of China ; CAS Project for Young Scientists in Basic Research ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Chinese Academy of Sciences ; Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, U.S. Department of Energy ; Fundamental Research Funds for the Central Universities ; National Natural Science Fund for Excellent Young Scientists Fund Program (Overseas) ; Xiaomi Young Talents Program ; European Research Council ; Deutsche Forschungsgemeinschaft
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/135637]  
专题中国科学院合肥物质科学研究院
通讯作者Zheng, Fengshan; Zang, Jiadong; Du, Haifeng
作者单位1.Univ Sci & Technol China, Grad Sch, Sci Isl Branch, Hefei 230026, Peoples R China
2.CUNY, Grad Ctr, Phys Program, New York, NY 10016 USA
3.Univ New Hampshire, Dept Chem, Durham, NH 03824 USA
4.Univ New Hampshire, Dept Phys & Astron, Durham, NH 03824 USA
5.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Peoples R China
6.South China Univ Technol, Spin X Inst, State Key Lab Luminescent Mat & Devices, Ctr Electron Microscopy,Sch Phys & Optoelect, Hong Kong 511442, Guangdong, Peoples R China
7.Chinese Acad Sci, Hefei Inst Phys Sci, Anhui Prov Key Lab Low Energy Quantum Mat & Device, High Magnet Field Lab, Hefei 230031, Peoples R China
8.Forschungszentrum Julich, Ernst Ruska Ctr Microscopy & Spect Electrons, D-52425 Julich, Germany
9.CUNY City Coll, Dept Phys, New York, NY 10031 USA
推荐引用方式
GB/T 7714		 Lyu, Boyao,Zhao, Shihua,Zhang, Yibo,et al. Three-dimensional magnetization reconstruction from electron optical phase images with physical constraints[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2024,67.
APA Lyu, Boyao.,Zhao, Shihua.,Zhang, Yibo.,Wang, Weiwei.,Zheng, Fengshan.,...&Du, Haifeng.(2024).Three-dimensional magnetization reconstruction from electron optical phase images with physical constraints.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,67.
MLA Lyu, Boyao,et al."Three-dimensional magnetization reconstruction from electron optical phase images with physical constraints".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 67(2024).

入库方式： OAI收割

来源：合肥物质科学研究院

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