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Article
Correlation Between Saturation Magnetization, Bandgap, and Lattice Volume of Transition Metal (M = Cr, Mn, Fe, Co, or Ni) Doped Zn1−xMxO Nanoparticles
Journal of Applied Physics
  • Joshua Anghel, Boise State University
  • Aaron Thurber, Boise State University
  • Dmitri A. Tenne, Boise State University
  • Charles B. Hanna, Boise State University
  • Alex Punnoose, Boise State University
Document Type
Article
Publication Date
4-21-2010
Disciplines
Abstract
This work reports on transition metal doped ZnO nanoparticles and compares the effects doping with different transition metal ions has on the structural, optical, and magnetic properties. Zn1−xMxO (M = Cr, Mn, Fe, Co, or Ni) nanoparticles were prepared by a chemical process for x = 0.02 and 0.05 in powder form. The powders where characterized by x-ray diffraction (XRD), spectrophotometry, and magnetometry. The Zn1−xMxO samples showed a strong correlation between changes in the lattice parameters, bandgap energy, and the ferromagnetic saturation magnetization. Unit cell volume and bandgap, determined from XRD and spectrophotometry respectively, were maximized with Fe doping and decreased as the atomic number of the dopant moved away from Fe. Bandgap was generally lower at x = 0.05 than x = 0.02 for all dopants. The saturation magnetization reached a maximum of 6.38 memu/g for Zn0.95Fe0.05O.
Citation Information
Joshua Anghel, Aaron Thurber, Dmitri A. Tenne, Charles B. Hanna, et al.. "Correlation Between Saturation Magnetization, Bandgap, and Lattice Volume of Transition Metal (M = Cr, Mn, Fe, Co, or Ni) Doped Zn1−xMxO Nanoparticles" Journal of Applied Physics (2010)
Available at: http://works.bepress.com/alex_punnoose/24/