Magnetic properties of Ni-NiO (Ferromagnetic-Antiferromagnetic) nanocomposites obtained from a partial mechanochemical reduction of NiO

J. Nogués, V. Langlais, S. Suriñach, M. D. Baró, J. Sort, S. Doppiu

Research output: Contribution to journalArticleResearchpeer-review

17 Citations (Scopus)

Abstract

The magnetic properties of ferromagnetic (FM)-antiferromagnetic (AFM), Ni-NiO, nanocomposites obtained from a reactive ball milling reduction of NiO in H2 atmosphere have been studied. The formation of ferromagnetic Ni from antiferromagnetic NiO can be accurately followed by the increase of the saturation magnetization. The microstructure of the nanocomposite, consisting of FM Ni nanoparticles embedded in an AFM NiO matrix leads to exchange bias effects, i.e., loop shifts and coercivity enhancement, after field cooling from above the Neel temperature of NiO. Copyright © 2008 American Scientific Publishers All rights reserved.
Original languageEnglish
Pages (from-to)2923-2928
JournalJournal of Nanoscience and Nanotechnology
Volume8
DOIs
Publication statusPublished - 1 Jan 2008

Keywords

  • Coercivity
  • Exchange bias
  • Nanocomposites
  • Nickel
  • Nickel oxide
  • Reactive ball milling

Fingerprint Dive into the research topics of 'Magnetic properties of Ni-NiO (Ferromagnetic-Antiferromagnetic) nanocomposites obtained from a partial mechanochemical reduction of NiO'. Together they form a unique fingerprint.

Cite this