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The far‐infrared spectra of some mixed cobalt zinc and magnesium zinc ferrites
O. S. Josyulu, Jandhyala Sobhanadri
Published in
Volume: 65
Issue: 2
Pages: 479 - 483
The far‐infrared spectra of five mixed ferrites in the range 200 to 640 cm−1 are reported. Four bands are observed. The high frequency band (v1) and low frequency band (v2) are assigned to the tetrahedral and octahedral complexes, respectively. A small band (v3) around v2 is observed and its intensity increases with divalent octahedral metal ion concentration. This band is assigned to the octahedral divalent metal‐oxygen ion complexes. The lowest band observed for the highest concentration of cobalt is attributed to the lattice vibrations of the system. Copyright © 1981 WILEY‐VCH Verlag GmbH & Co. KGaA
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Journalphysica status solidi (a)
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