Bulletin of Materials Science

, Volume 25, Issue 4, pp 351–354 | Cite as

Infrared absorption spectroscopic study of Nd3+ substituted Zn-Mg ferrites

  • B. P. Ladgaonkar
  • C. B. Kolekar
  • A. S. Vaingankar


Compositions of polycrystalline Zn x Mg1−x Fe2−y Nd y O4 (x = 0.00, 0.20, 0.40, 0.60, 0.80 and 1.00;y = 0.00, 0.05 and 0.10) ferrites were prepared by standard ceramic method and characterized by X-ray diffraction, scanning electron microscopy and infrared absorption spectroscopy. Far infrared absorption spectra show two significant absorption bands, first at about 600 cm−1 and second at about 425 cm−−1, which were respectively attributed to tetrahedral (A) and octahedral (B) sites of the spinel. The positions of bands are found to be composition dependent. The force constants,K T andK O, were calculated and plotted against zinc concentration. Compositional dependence of force constants is explained on the basis of cation-oxygen bond distances of respective sites and cation distribution.


Polycrystalline ferrites rare earth IR absorption cation distribution force constants 


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Copyright information

© Indian Academy of Sciences 2002

Authors and Affiliations

  • B. P. Ladgaonkar
    • 1
  • C. B. Kolekar
    • 1
  • A. S. Vaingankar
    • 1
    • 2
  1. 1.Department of ElectronicsShankarrao Mohite MahavidyalayaAkluj District, SolapurIndia
  2. 2.Department of ElectronicsShivaji UniversityKolhapurIndia

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