Details
| Original language | English |
|---|---|
| Pages (from-to) | 12048-12055 |
| Number of pages | 8 |
| Journal | Ceramics international |
| Volume | 48 |
| Issue number | 9 |
| Publication status | Published - May 2022 |
| Externally published | Yes |
Abstract
Samples with inversion parameter values (δ) ranging from 0.27 to 0.14 while maintaining the crystallite size value have been successfully fabricated from commercially available powders by mechanical grinding and thermal annealing treatments at temperatures ranging between 400 and 600 °C. Detailed characterization studies of these samples using X-ray, neutron diffraction and magnetic measurements have confirmed for the first time the simultaneous coexistence at 2 K of short range antiferromagnetic and ferrimagnetic ordering for a wide range of the inversion parameter. The magnetic phase diagram obtained is different from the one previously reported, which shows at 2 K the coexistence of long range antiferromagnetic order and short range order for values of inversion parameters less than 0.1 and the presence of a ferrimagnetic order only for values of δ > 0.2. At room temperature, the Rietveld analysis of NPD patterns and the magnetization curves showed a paramagnetic behavior in the samples with δ ≤ 0.1. For the samples with higher cationic inversion, typical hysteresis curves of ferrimagnetic materials were observed and the saturation magnetization values obtained agree quite well with the net magnetic moment obtained from the Rietveld refinement of the neutron diffraction patterns.
Keywords
- Inversion parameter, Magnetic order, Neutron powder diffraction, Rietveld refinement, Spinel zinc ferrite, X-ray diffraction
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Materials Science(all)
- Ceramics and Composites
- Materials Science(all)
- Materials Chemistry
- Materials Science(all)
- Surfaces, Coatings and Films
- Chemical Engineering(all)
- Process Chemistry and Technology
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In: Ceramics international, Vol. 48, No. 9, 05.2022, p. 12048-12055.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Coexistence of antiferro- and ferrimagnetism in the spinel ZnFe2O4 with an inversion degree δ lower than 0.3
AU - Cobos, Miguel Ángel
AU - Presa, Patricia de la
AU - Puente-Orench, Inés
AU - Llorente, Irene
AU - Morales, Irene
AU - García-Escorial, Asunción
AU - Hernando, Antonio
AU - Jiménez, José Antonio
N1 - Publisher Copyright: © 2022
PY - 2022/5
Y1 - 2022/5
N2 - Samples with inversion parameter values (δ) ranging from 0.27 to 0.14 while maintaining the crystallite size value have been successfully fabricated from commercially available powders by mechanical grinding and thermal annealing treatments at temperatures ranging between 400 and 600 °C. Detailed characterization studies of these samples using X-ray, neutron diffraction and magnetic measurements have confirmed for the first time the simultaneous coexistence at 2 K of short range antiferromagnetic and ferrimagnetic ordering for a wide range of the inversion parameter. The magnetic phase diagram obtained is different from the one previously reported, which shows at 2 K the coexistence of long range antiferromagnetic order and short range order for values of inversion parameters less than 0.1 and the presence of a ferrimagnetic order only for values of δ > 0.2. At room temperature, the Rietveld analysis of NPD patterns and the magnetization curves showed a paramagnetic behavior in the samples with δ ≤ 0.1. For the samples with higher cationic inversion, typical hysteresis curves of ferrimagnetic materials were observed and the saturation magnetization values obtained agree quite well with the net magnetic moment obtained from the Rietveld refinement of the neutron diffraction patterns.
AB - Samples with inversion parameter values (δ) ranging from 0.27 to 0.14 while maintaining the crystallite size value have been successfully fabricated from commercially available powders by mechanical grinding and thermal annealing treatments at temperatures ranging between 400 and 600 °C. Detailed characterization studies of these samples using X-ray, neutron diffraction and magnetic measurements have confirmed for the first time the simultaneous coexistence at 2 K of short range antiferromagnetic and ferrimagnetic ordering for a wide range of the inversion parameter. The magnetic phase diagram obtained is different from the one previously reported, which shows at 2 K the coexistence of long range antiferromagnetic order and short range order for values of inversion parameters less than 0.1 and the presence of a ferrimagnetic order only for values of δ > 0.2. At room temperature, the Rietveld analysis of NPD patterns and the magnetization curves showed a paramagnetic behavior in the samples with δ ≤ 0.1. For the samples with higher cationic inversion, typical hysteresis curves of ferrimagnetic materials were observed and the saturation magnetization values obtained agree quite well with the net magnetic moment obtained from the Rietveld refinement of the neutron diffraction patterns.
KW - Inversion parameter
KW - Magnetic order
KW - Neutron powder diffraction
KW - Rietveld refinement
KW - Spinel zinc ferrite
KW - X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=85122954374&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2022.01.063
DO - 10.1016/j.ceramint.2022.01.063
M3 - Article
VL - 48
SP - 12048
EP - 12055
JO - Ceramics international
JF - Ceramics international
SN - 0272-8842
IS - 9
ER -