Direct measurement of local magnetic moments at grain boundaries in iron

Seiichiro Ii, Kyosuke Hirayama, Kyohei Matsunaga, Hiromichi Fujii, Sadahiro Tsurekawa

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

We have succeeded for the first time to directly measure the local magnetic moments in the vicinity of well-characterized grain boundaries in pure iron by electron energy loss spectroscopy on transmission electron microscope. The measured local magnetic moments are larger at the grain boundary than in the grain interior. This enhancement of magnetic moments depends on the grain boundary character. These findings suggest that the local magnetic moments at grain boundaries are likely to correlate with the free volume at grain boundaries.

Original languageEnglish
Pages (from-to)253-256
Number of pages4
JournalScripta Materialia
Volume68
Issue number5
DOIs
Publication statusPublished - 2013 Mar

Keywords

  • Electron energy loss spectroscopy (EELS)
  • Grain boundaries
  • Iron
  • Magnetic moment
  • Transmission electron microscopy (TEM)

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Direct measurement of local magnetic moments at grain boundaries in iron'. Together they form a unique fingerprint.

Cite this