Large-angle Lorentz Four-dimensional scanning transmission electron microscopy for simultaneous local magnetization, strain and structure mapping
Abstract Small adjustments in atomic configurations can significantly impact the magnetic properties of matter. Strain, for instance, can alter magnetic anisotropy and enable fine-tuning of magnetism. However, the effects of these changes on nanoscale magnetism remain largely unexplored. In particul...
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-02-01
|
| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-56521-6 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1823861818626408448 |
|---|---|
| author | Sangjun Kang Maximilian Töllner Di Wang Christian Minnert Karsten Durst Arnaud Caron Rafal E. Dunin-Borkowski Jeffrey McCord Christian Kübel Xiaoke Mu |
| author_facet | Sangjun Kang Maximilian Töllner Di Wang Christian Minnert Karsten Durst Arnaud Caron Rafal E. Dunin-Borkowski Jeffrey McCord Christian Kübel Xiaoke Mu |
| author_sort | Sangjun Kang |
| collection | DOAJ |
| description | Abstract Small adjustments in atomic configurations can significantly impact the magnetic properties of matter. Strain, for instance, can alter magnetic anisotropy and enable fine-tuning of magnetism. However, the effects of these changes on nanoscale magnetism remain largely unexplored. In particular, when strain fluctuates at the nanoscale, directly linking structural changes with magnetic behavior poses a substantial challenge. Here, we develop an approach, LA-Ltz-4D-STEM, to map structural information and magnetic fields simultaneously at the nanoscale. This approach opens avenues for an in-depth study of structure-property correlations of magnetic materials at the nanoscale. We applied LA-Ltz-4D-STEM to image strain, atomic packing, and magnetic fields simultaneously in a deformed amorphous ferromagnet with complex strain variations at the nanoscale. An anomalous magnetic configuration near shear bands, which reside in a magnetostatically high-energy state, was observed. By performing pixel-to-pixel correlation of the different physical quantities across a large field of view, a critical aspect for investigating industrial ferromagnetic materials, the magnetic moments were classified into two distinct groups: one influenced by magnetoelastic coupling and the other oriented by competition with magnetostatic energy. |
| format | Article |
| id | doaj-art-875ced03c46a42f7866f93dd6e35b47c |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-875ced03c46a42f7866f93dd6e35b47c2025-02-09T12:46:15ZengNature PortfolioNature Communications2041-17232025-02-011611910.1038/s41467-025-56521-6Large-angle Lorentz Four-dimensional scanning transmission electron microscopy for simultaneous local magnetization, strain and structure mappingSangjun Kang0Maximilian Töllner1Di Wang2Christian Minnert3Karsten Durst4Arnaud Caron5Rafal E. Dunin-Borkowski6Jeffrey McCord7Christian Kübel8Xiaoke Mu9Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT)Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT)Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT)Physical Metallurgy, Department of Materials Science, Technical University of Darmstadt (TUDa)Physical Metallurgy, Department of Materials Science, Technical University of Darmstadt (TUDa)Korea University of Technology and Education (Koreatech)Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbHNanoscale Magnetic Materials – Magnetic Domains, Department of Materials Science, Kiel UniversityInstitute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT)Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT)Abstract Small adjustments in atomic configurations can significantly impact the magnetic properties of matter. Strain, for instance, can alter magnetic anisotropy and enable fine-tuning of magnetism. However, the effects of these changes on nanoscale magnetism remain largely unexplored. In particular, when strain fluctuates at the nanoscale, directly linking structural changes with magnetic behavior poses a substantial challenge. Here, we develop an approach, LA-Ltz-4D-STEM, to map structural information and magnetic fields simultaneously at the nanoscale. This approach opens avenues for an in-depth study of structure-property correlations of magnetic materials at the nanoscale. We applied LA-Ltz-4D-STEM to image strain, atomic packing, and magnetic fields simultaneously in a deformed amorphous ferromagnet with complex strain variations at the nanoscale. An anomalous magnetic configuration near shear bands, which reside in a magnetostatically high-energy state, was observed. By performing pixel-to-pixel correlation of the different physical quantities across a large field of view, a critical aspect for investigating industrial ferromagnetic materials, the magnetic moments were classified into two distinct groups: one influenced by magnetoelastic coupling and the other oriented by competition with magnetostatic energy.https://doi.org/10.1038/s41467-025-56521-6 |
| spellingShingle | Sangjun Kang Maximilian Töllner Di Wang Christian Minnert Karsten Durst Arnaud Caron Rafal E. Dunin-Borkowski Jeffrey McCord Christian Kübel Xiaoke Mu Large-angle Lorentz Four-dimensional scanning transmission electron microscopy for simultaneous local magnetization, strain and structure mapping Nature Communications |
| title | Large-angle Lorentz Four-dimensional scanning transmission electron microscopy for simultaneous local magnetization, strain and structure mapping |
| title_full | Large-angle Lorentz Four-dimensional scanning transmission electron microscopy for simultaneous local magnetization, strain and structure mapping |
| title_fullStr | Large-angle Lorentz Four-dimensional scanning transmission electron microscopy for simultaneous local magnetization, strain and structure mapping |
| title_full_unstemmed | Large-angle Lorentz Four-dimensional scanning transmission electron microscopy for simultaneous local magnetization, strain and structure mapping |
| title_short | Large-angle Lorentz Four-dimensional scanning transmission electron microscopy for simultaneous local magnetization, strain and structure mapping |
| title_sort | large angle lorentz four dimensional scanning transmission electron microscopy for simultaneous local magnetization strain and structure mapping |
| url | https://doi.org/10.1038/s41467-025-56521-6 |
| work_keys_str_mv | AT sangjunkang largeanglelorentzfourdimensionalscanningtransmissionelectronmicroscopyforsimultaneouslocalmagnetizationstrainandstructuremapping AT maximiliantollner largeanglelorentzfourdimensionalscanningtransmissionelectronmicroscopyforsimultaneouslocalmagnetizationstrainandstructuremapping AT diwang largeanglelorentzfourdimensionalscanningtransmissionelectronmicroscopyforsimultaneouslocalmagnetizationstrainandstructuremapping AT christianminnert largeanglelorentzfourdimensionalscanningtransmissionelectronmicroscopyforsimultaneouslocalmagnetizationstrainandstructuremapping AT karstendurst largeanglelorentzfourdimensionalscanningtransmissionelectronmicroscopyforsimultaneouslocalmagnetizationstrainandstructuremapping AT arnaudcaron largeanglelorentzfourdimensionalscanningtransmissionelectronmicroscopyforsimultaneouslocalmagnetizationstrainandstructuremapping AT rafaleduninborkowski largeanglelorentzfourdimensionalscanningtransmissionelectronmicroscopyforsimultaneouslocalmagnetizationstrainandstructuremapping AT jeffreymccord largeanglelorentzfourdimensionalscanningtransmissionelectronmicroscopyforsimultaneouslocalmagnetizationstrainandstructuremapping AT christiankubel largeanglelorentzfourdimensionalscanningtransmissionelectronmicroscopyforsimultaneouslocalmagnetizationstrainandstructuremapping AT xiaokemu largeanglelorentzfourdimensionalscanningtransmissionelectronmicroscopyforsimultaneouslocalmagnetizationstrainandstructuremapping |