Surface modification of chemically synthesized FePt nanoparticles

Takuma Hachisu, Takahiro Yotsumoto, Atsushi Sugiyama, Tetsuya Osaka

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

4 Citations (Scopus)

Abstract

Ll0-FePt nanoparticle having high magnetic anisotropy is a promising candidate for the future ultra high magnetic recording material. We have succeeded in the fabrication of cubical FePt nanoparticles. It is necessary for high areal recording density to develop a homogeneous assembled technique of the cubical nanoparticle with its magnetic easy axis in the vertical direction on a substrate. It has been known the selective chemical reaction between metal species and functional group of organic molecules. We focused on the selective chemical reaction to control the direction of the magnetic easy axis in the cubical nanoparticle. In this study, the modification of the organic molecule with various functional groups to the surface of the cubical nanoparticle was examined. Consequently, the amino groups were replaced by thiol groups and carboxyl groups on the surface ligands of the nanoparticle were residual, and then, we confirmed bonding thiol group end to Pt atom selectively.

Original languageEnglish
Title of host publicationECS Transactions - Magnetic Materials, Processes and Devices 10 - 214th ECS Meeting
Pages199-206
Number of pages8
Edition45
DOIs
Publication statusPublished - 2009 Nov 23
EventMagnetic Materials, Processes and Devices 10 - 214th ECS Meeting - Honolulu, HI, United States
Duration: 2008 Oct 122008 Oct 17

Publication series

NameECS Transactions
Number45
Volume16
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

ConferenceMagnetic Materials, Processes and Devices 10 - 214th ECS Meeting
CountryUnited States
CityHonolulu, HI
Period08/10/1208/10/17

ASJC Scopus subject areas

  • Engineering(all)

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    Hachisu, T., Yotsumoto, T., Sugiyama, A., & Osaka, T. (2009). Surface modification of chemically synthesized FePt nanoparticles. In ECS Transactions - Magnetic Materials, Processes and Devices 10 - 214th ECS Meeting (45 ed., pp. 199-206). (ECS Transactions; Vol. 16, No. 45). https://doi.org/10.1149/1.3140022