Crossref journal-article
AIP Publishing
Journal of Applied Physics (317)
Abstract

The magnetic properties of nonstoichiometric cobalt ferrite nanocrystals differing by their sizes were investigated by magnetic measurements and Fe57 Mössbauer spectroscopy. We found that the spin-wave Bloch exponent increases with increasing particle size, in agreement with previous studies. Under a magnetic field of 7 T, we observed that the partial reorientation of the two ferrimagnetic Fe3+ sublattice magnetizations towards the field direction increases with increasing the particle size; we discuss the applicability of an intrinsic spin canting model as a function of the particle size. An evaluation of the relative amounts of cobalt and iron in each spinel site is given.

Bibliography

Ngo, A. T., Bonville, P., & Pileni, M. P. (2001). Spin canting and size effects in nanoparticles of nonstoichiometric cobalt ferrite. Journal of Applied Physics, 89(6), 3370–3376.

Authors 3
  1. A. T. Ngo (first)
  2. P. Bonville (additional)
  3. M. P. Pileni (additional)
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Dates
Type When
Created 23 years ago (July 26, 2002, 10:14 a.m.)
Deposited 1 year, 6 months ago (Feb. 5, 2024, 7:40 p.m.)
Indexed 1 month, 2 weeks ago (July 7, 2025, 9:06 a.m.)
Issued 24 years, 5 months ago (March 15, 2001)
Published 24 years, 5 months ago (March 15, 2001)
Published Print 24 years, 5 months ago (March 15, 2001)
Funders 0

None

@article{Ngo_2001, title={Spin canting and size effects in nanoparticles of nonstoichiometric cobalt ferrite}, volume={89}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.1347001}, DOI={10.1063/1.1347001}, number={6}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Ngo, A. T. and Bonville, P. and Pileni, M. P.}, year={2001}, month=mar, pages={3370–3376} }