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Atomic-scale observations in a desired local area should bring a great benefit to exploring novel fundamental materials and devices. Developments of hardware-type aberration corrector1,2 in electron microscopy have enabled atomic resolution in local structural observations3-5, chemical6,7, and vibration analysis8. As for magnetic imaging, however, atomic-level spin configuration has only been analyzed by electron energy-loss spectroscopy with placing samples in strong magnetic fields9-11, which destroys the nature of the magnetic ordering in samples. Here, we report that the magnetic fields inside materials can be observed at atomic resolution under magnetic-field-free conditions by electron holography with a hardware-type aberration-corrector assisted by post digital aberration corrections. Magnetic-field distributions of atomic-layer period formed by opposite magnetic moments of Fe and Mo atoms in a double-perovskite structured ferrimagnet (Ba2FeMoO6) are successfully resolved. This capability opens the door to studies of materials and devices by atomic-resolution magnetic-field observations of local areas such as interfaces and grain boundaries.

権利情報:

• In Copyright
  

  This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1038/s41586-024-07673-w

キーワード: Electron Holography

刊行年月日: 2024-07-18

出版者: Springer Science and Business Media LLC

掲載誌:

• Nature (ISSN: 00280836) vol. 631 issue. 8021 p. 521-525

研究助成金:

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.4942

公開URL: https://doi.org/10.1038/s41586-024-07673-w

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更新時刻: 2025-01-04 16:30:45 +0900

MDRでの公開時刻: 2025-01-04 16:30:45 +0900