Analysis of magnetization in nanocomposite Nd4.5(Fe,Cr) 77B18.5 by electron holography and simulation

Yoshitaka Aoyama, Young Gil Park, Daisuke Shindo

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Magnetization distribution in nanocomposite Nd4.5(Fe,Cr) 77B18.5 was studied by electron holography and computer simulation. In order to understand the detailed magnetization distribution, the magnetic flux distribution was calculated taking into account the magnetic charge or the stray field on the basis of magnetization models consisting of small magnetic dipoles and was compared with that in reconstructed phase images experimentally observed. Through the comparison, the characteristic feature in the distribution of the magnetization distribution in the nanocomposite magnetic materials was clarified, and the distribution was found to well correspond to their magnetic properties. It is pointed out that for understanding magnetization, the interpretation of reconstructed phase images should be done through computer simulation just as the analysis of high-resolution electron microscope images. Eventually, it was demonstrated that electron holography with computer simulation is quite useful to analyze detailed magnetization distribution in nanocrystalline magnetic materials at the nanometer scale.

Original languageEnglish
Pages (from-to)279-286
Number of pages8
JournalJournal of Electron Microscopy
Volume54
Issue number3
DOIs
Publication statusPublished - 2005 Jun

Keywords

  • Electron holography
  • Magnetic flux
  • Magnetization
  • Simulation

ASJC Scopus subject areas

  • Instrumentation

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