Suppressing geometric phase shift owing to antiphase boundaries in dark-field electron holography

Youngji Cho, Kodai Niitsu, Yoshihiro Midoh, Koji Nakamae, Daisuke Shindo, Jun Mo Yang, Yasukazu Murakami

Research output: Contribution to journalArticle

Abstract

Antiphase boundaries (APBs) formed in Fe70Al30 alloy have attracted significant attention because they intensify ferromagnetic spin order by atomic disordering. Electron holography can be a useful tool for examining the magnetism in APB regions, although the observations suffer from an undesired contribution from an additional geometric phase shift in the incident electron wave. This paper proposes a method based on dark-field electron holography to suppress the unwanted geometric phase shift owing to APBs in electron holograms. The results of this study yield useful information for examining APBs and other planar defects in ordered crystals.

Original languageEnglish
Pages (from-to)698-703
Number of pages6
JournalMaterials Transactions
Volume60
Issue number5
DOIs
Publication statusPublished - Jan 1 2019

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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