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Journal of Superconductivity and Novel Magnetism

, Volume 23, Issue 8, pp 1467–1471 | Cite as

Magnetic and Structural Properties of Ni/NiO Nanoparticles Prepared Using Nickel Acetate and Polyvinyl Acetate Precursor

  • Hossein Ahmadvand
  • Hadi Salamati
  • Parviz Kameli
  • Fereidoon S. Razavi
Original Paper

Abstract

Ni/NiO nanoparticles were synthesized using a mixture of nickel acetate and polyvinyl acetate as precursors, followed by heating between 350–450 °C. The prepared samples were investigated using XRD, TEM and SQUID magnetometry. Depending on the heating temperature, the average sizes of Ni and NiO crystallites were found to be in the ranges of 25–37 nm and 10–26 nm, respectively. The analysis of XRD patterns shows that the volume percentage of Ni can be easily controlled by the heating temperature. Magnetization measurements show that the samples consist of ferromagnetic moments which are blocked at low temperatures and a disordered NiO component which causes spin-glass like behavior.

Keywords

Magnetic nanoparticles Ni/NiO nanoparticles Spin-glass Blocking 

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Hossein Ahmadvand
    • 1
  • Hadi Salamati
    • 1
  • Parviz Kameli
    • 1
  • Fereidoon S. Razavi
    • 2
  1. 1.Department of PhysicsIsfahan University of TechnologyIsfahanIran
  2. 2.Department of PhysicsBrock UniversitySt. CatharinesCanada

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