Issue 22, 2009

Chemically ordered FePt3nanoparticles synthesized by a bimetallic precursor and their magnetic transitions

Abstract

We report the synthesis of the antiferromagnetic (AFM) FePt3 nanoparticles (NPs) from a bimetallic precursor [(CO)3Fe(µ-dppm)(µ-CO)PtCl2] and the study of their magnetic behaviors with annealing temperature. As-synthesized FePt3 NPs having a sharp edge shape with an average side length of 2.7 nm adopt a cubic L12cell with a = 3.898 Å (space group: Pm-3m) and are chemically ordered, undergoing AFM transition near 200 K. Magnetization data for the NPs annealed at 600 °C indicate evolution of the ferromagnetic (FM) phase within the AFM matrix. When the sample is annealed at 900 °C, FM impurity is almost completely suppressed and AFM order develops near 127 K, which is in good agreement with that of the bulk FePt3 alloys.

Graphical abstract: Chemically ordered FePt3 nanoparticles synthesized by a bimetallic precursor and their magnetic transitions

Supplementary files

Article information

Article type
Paper
Submitted
23 Oct 2008
Accepted
24 Mar 2009
First published
20 Apr 2009

J. Mater. Chem., 2009,19, 3677-3681

Chemically ordered FePt3 nanoparticles synthesized by a bimetallic precursor and their magnetic transitions

H. M. Song, W. S. Kim, Y. B. Lee, J. H. Hong, H. G. Lee and N. H. Hur, J. Mater. Chem., 2009, 19, 3677 DOI: 10.1039/B818838F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements