Novel synthesis of FePt nanoparticles and magnetic properties of their self-assembled superlattices

Masafumi Nakaya, Yuko Tsuchiya, Kenchi Ito, Yasunori Oumi, Tsuneji Sano, Toshiharu Teranishi

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)

Abstract

The novel synthesis of FePt nanoparticle superlattices by polyol reduction of platinum acetylacetonate and iron acetylacetonate is reported. The compositions of FePt nanoparticle are readily controlled, and the particle sizes are not significantly affected by the compositions, retaining to be ca. 3 nm with a very narrow size distribution. The FePt nanoparticles self-assemble into 2-D and 3-D superlattices. Thermal annealing converts the crystal structure of FePt nanoparticle from fee to L10 phase and transforms the superparamagnetic nanoparticle into ferromagnetic one.

Original languageEnglish
Pages (from-to)130-131
Number of pages2
JournalChemistry Letters
Volume33
Issue number2
DOIs
Publication statusPublished - 2004 Feb 5

ASJC Scopus subject areas

  • Chemistry(all)

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