Investigation of spin reorientation in YMn1-xFexO3 (x=0.55, 0.6, 0.7, 0.8, 0.9, and 1.0) by Mössbauer spectroscopy

Jung Tae Lim, Young Jai Choi, Chul Sung Kim

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Abstract

YMn1-xFexO3 (x=0.55, 0.6, 0.7, 0.8, 0.9, and 1.0) polycrystalline samples were prepared by the solid-state-reaction method. The crystal structure and magnetic properties of samples were investigated with x-ray diffractometer (XRD), vibrating sample magnetometer, and Mössbauer spectroscopy. The XRD patterns at 295K, analyzed by Rietveld refinement method, showed that all samples were single-phased orthorhombic of Pnma with both Bragg (RB) and structure (RF) factors less than 5%. Mössbauer spectra of all samples were obtained at various temperatures ranging from 4.2 to 500K, and the spectra below TC were fitted by least-square method as a function of the Fe and Mn distribution. Isomer shift (δ) values of all samples indicated that the charge states were Fe3+. In addition, temperature-dependent hyperfine field (Hhf), averaged electric quadrupole shift EQ, and averaged isomer shift δ have shown abrupt changes around TSR due to the change in the charge state of Mn ions.

Original languageEnglish
Article number17D918
JournalJournal of Applied Physics
Volume117
Issue number17
DOIs
Publication statusPublished - 2015 May 7

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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