Raman and Mössbauer spectroscopic studies of tungsten doped Ni–Zn nano ferrite

Abhilash Pathania, Kush Rana, Nikhil Bhalla, Preeti Thakur, Pedro Estrela, Jean Luc Mattei, Patrick Queffelec, Atul Thakur

Research output: Contribution to journalArticle

3 Citations (Scopus)
7 Downloads (Pure)

Abstract

In this study, tungsten substituted Ni-Zn nano ferrites of the composition Ni0.5Zn0.5WxFe2−xO4 with x = 0.0, 0.2, 0.4 have been synthesized by a co-precipitation method. The prepared samples were pre-sintered at 850 °C and then annealed at 1000 °C for 3 h each. The structural, morphological, optical and magnetic properties of these samples were studied by using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy (RS) and Mössbauer spectroscopy (MS). XRD revealed the formation of spinel single-phase structure with an average crystallite size of 53–60 nm. Fourier transform infrared spectroscopy show two prominent peaks primarily due to the tetrahedral and octahedral stretching vibrations in the range of 400–600 cm−1. Raman spectra indicate first order three Raman active modes; (A1 g + Eg + T2 g) at around 688, 475 and 326 cm−1. Mössbauer spectroscopy reveals that substitution of W3+ for Fe3+ cation results in reduction of total magnetic moment and consequently the net magnetization.

Original languageEnglish
Pages (from-to)679-685
Number of pages7
JournalJournal of Materials Science: Materials in Electronics
Volume28
Issue number1
Early online date31 Aug 2016
DOIs
Publication statusPublished - 1 Jan 2017

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