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Fe-doping effects of ferromagnetic Zn0.98− xFe0.02MgxO semiconductor

Authors
Journal
Journal of Magnetism and Magnetic Materials
0304-8853
Publisher
Elsevier
Publication Date
Volume
282
Identifiers
DOI: 10.1016/j.jmmm.2004.04.075
Keywords
  • Zno
  • Mgo
  • Fe Doping
  • Ferromagnetic
  • Semiconductor
  • Mössbauer
Disciplines
  • Physics

Abstract

Abstract The X-ray diffraction patterns of the Zn 0.98– x Fe 0.02Mg x O ( x=0, 0.05, 0.1, 0.2) powders showed no detectable MgO peaks for x⩽0.1, whereas clear MgO peaks x=0.2. All the peaks for the X-ray diffraction patterns of x⩽0.1 samples belong to the hexagonal ( P6 3 mc) lattice of ZnO. The hysteresis curve at 77 K for the Zn 0.88Mg 0.1Fe 0.02O indicated the coexistence of both a paramagnetic and a ferromagnetic phases. The temperature dependence of magneto-resistance curve shows semiconductor behavior over 220 K.

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