Paper Title:
FePt Nanorods and Nanowires for Novel Ferrofluids
  Abstract

The preparation of a novel ferrofluid out of one-dimensional magnetic structures is attempted by the reverse-micelle-based wet-chemical formation of FePt nanowires and nanorods. The latter were found to manifest lengths ranging from 25 to 250 nm, with an average diameter of only 1.5 to 2 nm. X-ray diffraction and high-resolution TEM revealed a polycrystalline microstructure, with individual grains having the disordered fcc structure in the as-prepared state; a thermally induced transition to the chemically ordered phase was observed around 550°C. The samples were determined to be superparamagnetic at room temperature, with the blocking temperature measured to be ~26 K.

  Info
Periodical
Solid State Phenomena (Volume 154)
Edited by
Marcin Leonowicz and Dariusz Oleszak
Pages
89-94
DOI
10.4028/www.scientific.net/SSP.154.89
Citation
Z. Y. Wu, H. L. Dong, A. L. Chuvilin, U. Wiedwald, L. Y. Han, C. E. Krill III, "FePt Nanorods and Nanowires for Novel Ferrofluids", Solid State Phenomena, Vol. 154, pp. 89-94, 2009
Online since
April 2009
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