Synthesis and characterization of FeRh nanoparticles

Diana Ciuculescu*, Catherine Amiens, Marc Respaud, Pierre Lecante, Andrea Falqui, Bruno Chaudret

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Fe0.8Rh0.2 nanoparticles with an average size of 1.8 nm have been synthesized by simultaneous decomposition of stoichiometric quantities of Fe[N(Si(CH3)3)2]2 and Rh(C3H5)3 in mild conditions of temperature and hydrogen pressure, using hexadecylamine as stabilizer. These nanoparticles display a magnetization of 1.13 μB per iron atom, which is more than two times smaller than the bulk value with the same composition. No surface contamination with iron oxides was detected by Mössbauer spectroscopy. Superconducting quantum interference device and Mössbauer spectroscopy investigations reveal that the origin of this variation may be a core-shell Rh/Fe chemical arrangement.

Original languageEnglish (US)
Pages (from-to)1153-1159
Number of pages7
JournalModern Physics Letters B
Volume21
Issue number18
DOIs
StatePublished - Aug 10 2007

Keywords

  • Core-shell segregation
  • FeRh
  • Nanoparticles

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Statistical and Nonlinear Physics
  • Mathematical Physics

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