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 language | English |
|---|---|
| Article number | 17D918 |
| Journal | Journal of Applied Physics |
| Volume | 117 |
| Issue number | 17 |
| DOIs | |
| Publication status | Published - 2015 May 7 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
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Investigation of spin reorientation in YMn1- xFexO3 (x=0.55, 0.6, 0.7, 0.8, 0.9, and 1.0) by Mössbauer spectroscopy. / Lim, Jung Tae; Choi, Young Jai; Kim, Chul Sung.
In: Journal of Applied Physics, Vol. 117, No. 17, 17D918, 07.05.2015.Research output: Contribution to journal › Article
TY - JOUR
T1 - Investigation of spin reorientation in YMn1- xFexO3 (x=0.55, 0.6, 0.7, 0.8, 0.9, and 1.0) by Mössbauer spectroscopy
AU - Lim, Jung Tae
AU - Choi, Young Jai
AU - Kim, Chul Sung
PY - 2015/5/7
Y1 - 2015/5/7
N2 - 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.
AB - 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.
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U2 - 10.1063/1.4918564
DO - 10.1063/1.4918564
M3 - Article
VL - 117
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 17
M1 - 17D918
ER -