Transmission electron microscopy on thin film of high density magnetic composite prepared by FIB method

Yuko Kobayashi, Young Gil Park, Daisuke Shindo, Shin Tajima

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

A thin specimen of a high density magnetic composite (HDMC), which is a type of powder magnetic cores was prepared for transmission electron microscopy (TEM) using a focused ion beam (FIB) method. A homogeneous thin film containing an insulator boundary between the constituent Fe powders was obtained successfully. Using this thin film, detailed flow of magnetic flux was visualized by electron holography, and the magnetic flux density was estimated to be 1.73 ± 0.09 T being consistent with that of a bulk HDMC (1.70 T). Moreover, through Lorentz microscopy, the characteristic magnetization process of HDMC was observed by applying the magnetic field up to approximately 8 kA/m.

Original languageEnglish
Pages (from-to)485-487
Number of pages3
JournalJournal of Electron Microscopy
Volume53
Issue number5
DOIs
Publication statusPublished - 2004

Keywords

  • Electron holography
  • Focused ion beam method
  • Lorentz microscopy
  • Magnetic domain structure
  • Powder magnetic core

ASJC Scopus subject areas

  • Instrumentation

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