Synthesis and magnetic properties of core-shell structured (NiCo)O (AFM)/NiCo(FM) magnetic nanoparticles

B. Jeyadevan, A. Hobo, O. Perales-Perez, C. N. Chinnasamy, Kozo Shinoda, Kazuyuki Tohji, A. Kasuya

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

1 Citation (Scopus)

Abstract

The authors report the synthesis, morphology and magnetic properties of (NiCo)O/NiCo AFM-FM nanoparticles. NiCo particles that exhibit a Co-rich core structure were synthesized by co-reduction from Co and Ni metal salts in ethylene glycol. The particle size and surface morphology were evaluated. The surface of the particle was oxidized at 573 K for 4 hours in a controlled atmosphere and an oxide layer about 20 nm thick was developed, creating an exchanged biased core-shell structure. The saturation magnetization, coercivity and hysteresis loop shifts of particles of varying composition and preparation conditions were measured.

Original languageEnglish
Title of host publicationINTERMAG Europe 2002 - IEEE International Magnetics Conference
EditorsJ. Fidler, B. Hillebrands, C. Ross, D. Weller, L. Folks, E. Hill, M. Vazquez Villalabeitia, J. A. Bain, Jo De Boeck, R. Wood
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)0780373650, 9780780373655
DOIs
Publication statusPublished - 2002 Jan 1
Event2002 IEEE International Magnetics Conference, INTERMAG Europe 2002 - Amsterdam, Netherlands
Duration: 2002 Apr 282002 May 2

Publication series

NameINTERMAG Europe 2002 - IEEE International Magnetics Conference

Other

Other2002 IEEE International Magnetics Conference, INTERMAG Europe 2002
CountryNetherlands
CityAmsterdam
Period02/4/2802/5/2

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Surfaces, Coatings and Films

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    Jeyadevan, B., Hobo, A., Perales-Perez, O., Chinnasamy, C. N., Shinoda, K., Tohji, K., & Kasuya, A. (2002). Synthesis and magnetic properties of core-shell structured (NiCo)O (AFM)/NiCo(FM) magnetic nanoparticles. In J. Fidler, B. Hillebrands, C. Ross, D. Weller, L. Folks, E. Hill, M. Vazquez Villalabeitia, J. A. Bain, J. De Boeck, & R. Wood (Eds.), INTERMAG Europe 2002 - IEEE International Magnetics Conference [1001264] (INTERMAG Europe 2002 - IEEE International Magnetics Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INTMAG.2002.1001264