Coexistence of antiferro- and ferrimagnetism in the spinel ZnFe2O4 with an inversion degree d lower than 0.3

Cobos, M. Á. ; de la Presa, P. ; Puente-Orench, I. ; Llorente, I. ; Morales, I. ; García-Escorial, A. ; Hernando, A. ; Jiménez, J. A.

Resumen: Samples with inversion parameter values (d) 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 d > 0.2. At room temperature, the Rietveld analysis of NPD patterns and the magnetization curves showed a paramagnetic behavior in the samples with d = 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. © 2022

Idioma: Inglés

DOI: 10.1016/j.ceramint.2022.01.063

Año: 2022

Publicado en: Ceramics International 48, 9 (2022), 12048-12055
ISSN: 0272-8842

Factor impacto JCR: 5.2 (2022)

Categ. JCR: MATERIALS SCIENCE, CERAMICS rank: 3 / 29 = 0.103 (2022) - Q1 - T1

Factor impacto CITESCORE: 8.8 - Chemical Engineering (Q1) - Materials Science (Q1)

Factor impacto SCIMAGO: 0.918 - Ceramics and Composites (Q1) - Electronic, Optical and Magnetic Materials (Q1) - Surfaces, Coatings and Films (Q1) - Materials Chemistry (Q1) - Process Chemistry and Technology (Q2)

Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2019-109334RB
Financiación: info:eu-repo/grantAgreement/ES/MICINN/RTI2018-095856-B-C21
Financiación: info:eu-repo/grantAgreement/ES/MINECO/PID2019-109334RB
Financiación: info:eu-repo/grantAgreement/ES/MINECO/RTI2018-095856-B-C21

Tipo y forma: Article (Published version)