High thermal stability of carbon-coated L1(0)-FePt nanoparticles prepared by salt-matrix annealing

TitleHigh thermal stability of carbon-coated L1(0)-FePt nanoparticles prepared by salt-matrix annealing
Publication TypeJournal Article
Year of Publication2008
AuthorsRong CB, Poudyal N, Chaubey GS, Nandwana V, Liu Y, Wu YQ, Kramer MJ, Kozlov ME, Baughman RH, Liu JP
Journal TitleJournal of Applied Physics
Volume103
Pages07E131
Date PublishedApr
Type of ArticleProceedings Paper
ISBN Number0021-8979
Accession NumberISI:000255043200543
KeywordsCOERCIVITY, FEPT NANOPARTICLES, MAGNETS, phase
Abstract

Monodisperse L1(0)-FePt nanoparticles with size ranging from 3 to 8 nm were prepared by the salt-matrix annealing method. It was observed that the annealed particles have high thermal stability-no sintering occurred even when the particles were heated at 1100 degrees C for an hour. This high thermal stability resulted from carbon coating of the particles during salt-matrix annealing as consequence of decomposition of surfactants. (C) 2008 American Institute of Physics.

DOI10.1063/1.2832506
Alternate JournalJ. Appl. Phys.