Preparation, structure and magnetic characterization of Ni doped ZnO nano-particles

Dogan N., Bingölbali A., Arda L.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, vol.373, pp.226-230, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 373
  • Publication Date: 2015
  • Doi Number: 10.1016/j.jmmm.2014.03.053
  • Journal Name: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.226-230
  • Keywords: Nanoparticle, Magnetic measurement, Sol-gel, Zinc oxide, ZnNiO, MECHANICAL-PROPERTIES, FERROMAGNETISM, SEMICONDUCTOR
  • Yıldız Technical University Affiliated: Yes

Abstract

The nature of magnetism in Ni-doped ZnO magnetic nano-particles (x=0.0, 0.10, 0.15, 0.20, 0.30) are synthesized by the sol-gel technique using solutions of Ni and Zn based alkoxide which are dissolved into a solvent and a chelating agent. X-ray diffraction (XRD), Scanning Electron Microscope (SEM) and Vibrating Sample Magnetometer (VSM) were employed to understand how the Ni-doped influenced the structural and magnetic properties of the nano-crystalline ZnO particles. The grain sizes of the ZnNiO nano-particles were measured to be approximately 90 nm by means of a Scanning Electron Microscope. XRD measurements and SEM studies show that Ni-doped ZnO has wurtzite structures with NiO secondary phases. Room temperature ferromagnetism was observed for highly Ni-doped ZnO nano-particles. (C) 2014 Elsevier B.V. All rights reserved.