Structural, magnetic and mössbauer studies of GdFexMn1-xO3 multiferroic materials

F. Bzour*, A. Gismelseed, I. Z. Al-Yahmadi, F. Al Ma’Mari, A. Al-Rawas, S. Al-Harthi, A. Yousif, H. Widatallah, M. ElZain, M. T.Z. Myint

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

GdFexMn1-xO3 (x = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9 and 1.0) nanoparticle series was synthesised using sol–gel auto-combustion technique. Rietveld refinement of x-ray diffraction (XRD) patterns revealed that all samples are crystallized in a single phase with (Pnma) space group No.62. The FC–ZFC measurements showed an increase in the antiferromagnetic (AFM) to paramagnetic (PM) transition Néel temperature (TN) with the increase of Fe3+ content, reaching a value of 344 K at 50% of Fe doping. The inclusion of Fe also induced spin reorientation temperature (TSR) at x = 0.5 and x = 0.7. 57Fe mössbauer spectroscopy measurements were carried out at room temperature (RT⁓295 K) and liquid nitrogen (LN⁓78 K) temperature. Both RT and LN mössbauer spectra were fitted with paramagnetic doublet for low Fe content (x < 0.5), whereas for higher Fe content (x > 0.5), the spectra were fitted with magnetic sextet. Isomer shift values confirms the dominance of Fe in its high oxidation state (Fe3+).

Original languageEnglish
Article number54
JournalHyperfine Interactions
Volume242
Issue number1
DOIs
Publication statusPublished - Dec 2021
Externally publishedYes

Keywords

  • Magnetic properties
  • Manganite
  • Mӧssbauer spectroscopy
  • X-ray diffraction

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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