Existence of Fe 4+ ions in Co 2.25 Fe 0.75 O 4 spinel ferrite confirmed from SXRD and XANES spectroscopy

Manas Ranjan Panda, R. N. Bhowmik, A. K. Sinha

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther


The Co 2.25 Fe 0.75 O 4 ferrite composition has been prepared by chemical co-precipitation route. The as-prepared sample after annealing at 900°C in air formed single phase cubic spinel structure. Synchrotron X-ray diffraction and X-ray absorption near edge structure (XANES) measurements were used to study charge states of the cations in octahedral and tetrahedral sites of the cubic spinel structure. Raman spectra indicated normal cubic spinel structure. XANES data suggested the existence of Fe 4+ ions in the spinel structure.

Original languageEnglish
Title of host publicationSolid State Physics
Subtitle of host publicationProceedings of the 59th DAE Solid State Physics Symposium 2014
EditorsR. Chitra, N. K. Sahoo, Dibyendu Bhattacharyya
PublisherAmerican Institute of Physics
ISBN (Electronic)9780735413108
Publication statusPublished - 25 Jun 2015
Externally publishedYes
EventDAE Solid State Physics Symposium 2014 - Vellore, Tamilnadu, India
Duration: 16 Dec 201420 Dec 2014
Conference number: 59th
https://aip.scitation.org/toc/apc/1665/1 (Proceedings)

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


ConferenceDAE Solid State Physics Symposium 2014
Abbreviated titleSSPS 2014
CityVellore, Tamilnadu
Internet address


  • Co rich spinel ferrite
  • Ramanscattering
  • Synchrotron X-ray diffraction
  • X-ray absorption near edge structure

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