Magnetic flux in soft magnetic Fe-Si-B-P-Cu amorphous alloy containing nanocrystallites analyzed by electron holography

Zentaro Akase, Kenta Kimura, Tomohiro Saito, Kodai Niitsu, Toshiaki Tanigaki, Yoh Iwasaki, Parmanand Sharma, Akihiro Makino, Daisuke Shindo

Research output: Contribution to journalArticlepeer-review

Abstract

Electron holography is used to visualize the electromagnetic field inside and outside a sample with high resolution. However, for analysis of nanocrystalline materials, difficulties related to electron diffraction are expected to arise due to the random orientation of the nanocrystallites. Here we present a procedure to extract magnetic field information from holograms and reduce the effect of electron diffraction by paying attention to the contrast of bright-field images. As a demonstration, the difference in the intensity of the magnetic flux between the Fe-Si-B-P-Cu amorphous matrix and Fe-rich body-centered cubic (bcc) nanocrystallites is detected with this procedure.

Original languageEnglish
Article number168519
JournalJournal of Magnetism and Magnetic Materials
Volume541
DOIs
Publication statusPublished - 2022 Jan 1

Keywords

  • Electron holography
  • Magnetic flux
  • Nanocrystalline soft magnetic alloy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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