Two dimensionally dispersed Fe/FePd nanocomposite particles synthesized by electron beam deposition

Yoshihiko Hirotsu, Kazuhisa Sato, Junichi Kawamura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Isolated nanoparticles composed of bcc-Fe and L10-FePd have been fabricated by successive deposition of Pd and Fe onto NaCl substrate cleaved in air, and their structural characterization has been performed by transmission electron microscopy (TEM). Alloy composition was varied by changing the deposited Fe thickness in the thickness range between 2 and 7.5 nm with respect to the fixed Pd thickness of 1 nm. Post-deposition annealing lead to a formation of dual phase nanocomposite particles with the L10-type ordered phase and the bcc-Fe phase within each particle. The particle size little changed on annealing at 873K, indicating that both alloying and atomic ordering reactions proceeded within each nanoparticle. The size of the bcc-Fe region in Fe/FePd nanoparticles was measured from TEM images and its relation to the change of the maximum energy product was discussed.

Original languageEnglish
Title of host publicationNew Frontiers of Processing and Eng. in Advanced Materials - Proc. of the Int. Conf. on New Frontiers of Process Science and Eng. in Advanced Materials, PSEA' 04 - The 14th Iketani Conference
PublisherTrans Tech Publications Ltd
Pages275-280
Number of pages6
ISBN (Print)0878499806, 9780878499809
DOIs
Publication statusPublished - 2005 Jan 1
Externally publishedYes
EventInternational Conference on New Frontiers of Process Science and Engineering in Advanced Materials, PSEA' 04 - Kyoto, Japan
Duration: 2004 Nov 242004 Nov 26

Publication series

NameMaterials Science Forum
Volume502
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

OtherInternational Conference on New Frontiers of Process Science and Engineering in Advanced Materials, PSEA' 04
CountryJapan
CityKyoto
Period04/11/2404/11/26

Keywords

  • Exchange-coupling
  • Fe-Pd
  • Nanocomposite
  • TEM

ASJC Scopus subject areas

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

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