The role of Pt complex on the synthesis of FePt by polyol process

S. Aizawa, K. Tohji, B. Jeyadevan

研究成果: Conference contribution

抄録

Target materials in this experiment were FePt alloy nanoparticles with face-centered tetragonal structure, narrow size distribution, and the size of 6-8 nm. This type of materials was expected to have high recording-density of 1Tbit/inch2 with high magnetic anisotropy. In this study, a detailed investigation was carried out to understand the reduction characteristics of Pt complexes, and FePt alloy nanoparticles with diameters larger than 6 nm was try to synthesize. For the synthesis of Pt nanoparticles by using polyol process, three kinds of Pt complexes, namely, H2PtCl6, Pt(EDTA), and Pt(acac)2 was used. The size of Pt metal nanoparticles was only few nm in the case of single Pt complex, while it was increased to 7-10 nm in the case of mixed Pt complex and adjusting the reaction temperature increasing ratio. FePt alloy nanoparticles with the diameter of 7-8 nm, distorted shape, and narrow size distribution were successfully synthesized. However, composition ratio of the particle was Fe12-21Pt79-88, nevertheless the ratio of a Fe:Pt in the original solution was 2:1.

本文言語English
ホスト出版物のタイトルWater Dynamics - 5th International Workshop on Water Dynamics
ページ22-25
ページ数4
DOI
出版ステータスPublished - 2008 3 17
イベント5th International Workshop on Water Dynamics - Sendai, Japan
継続期間: 2007 9 252007 9 27

出版物シリーズ

名前AIP Conference Proceedings
987
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other5th International Workshop on Water Dynamics
国/地域Japan
CitySendai
Period07/9/2507/9/27

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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