144638 20260217205551.0 doi 10.1063/5.0214250 sideral 139382 ART-2024-139382 eng Lohr, J. Structure of ZnxFe3-xO4 nanoparticles studied by neutron diffraction and its relation with their response in magnetic hyperthermia experiments 2024 Access copy available to the general public Unrestricted The mixed zinc-ferrite spinel magnetic nanoparticles (MNPs) with the general formula ZnxFe3−xO4 are among the most extensively studied families of Fe oxides due to their interesting and diverse chemical, electronic, and magnetic properties. These systems offer the possibility of surface functionalization and possess high biocompatibility, making them highly attractive for applications in biomedicine, such as magnetic fluid hyperthermia (MFH). The efficiency of the MFH process relies on the magnetic, structural and morphological properties of the MNPs. The substitution with the Zn ion and the cationic distribution, as well as the synthesis process employed, have a direct impact on the final properties of these oxides. Therefore, it is essential to have tools that enable a comprehensive characterization of the system to assess its performance in MFH. In this study, we have synthesized four ZnxFe3−xO4 MNP systems using three different methods: two by thermal decomposition at high temperatures, one by co-precipitation, and another by co-precipitation followed by ball milling. We analyze the effect of these various synthesis processes on the magnetic and crystallographic properties, aiming to correlate them with the response of each system in MFH. Neutron diffraction data are employed to determine the cation site occupation and to investigate the correlation with the synthesis method. MFH measurements were conducted in media of diverse viscosities, revealing different values of specific loss power, thus demonstrating a clear dependence on the synthesis process and Zn content. info:eu-repo/grantAgreement/EC/H2020/101007629 /EU/Nanomaterials for Enzymatic Control of Oxidative Stress Toxicity and Free Radical Generation/NESTOR This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 101007629 -NESTOR info:eu-repo/grantAgreement/EC/H2020/101007825/EU/ULtra ThIn MAgneto Thermal sEnsor-Ing/ULTIMATE-I This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 101007825-ULTIMATE-I info:eu-repo/grantAgreement/EC/H2020/734187/EU/Spin conversion, logic storage in oxide-based electronics/SPICOLOST This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 734187-SPICOLOST info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 2.5 2024 PHYSICS, APPLIED 101 / 187 = 0.54 2024 Q3 T2 0.58 2024 Atomic and Molecular Physics, and Optics 2024 Q2 Physics and Astronomy (miscellaneous) 2024 Q2 Condensed Matter Physics 2024 Q2 5.1 2024 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Tobia, D. Torres, T. E. Universidad de Zaragoza (orcid)0000-0002-6116-9331 Rodríguez, L. Puente Orench, I. (orcid)0000-0001-8224-329X Cuello, G. J. Aguirre, M. H. Universidad de Zaragoza (orcid)0000-0002-1296-4793 Campo, J. (orcid)0000-0002-3600-1721 Aurelio, G. Lima, E. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 136, 4 (2024), 043905 [11 pp.] J. appl. physi. Journal of Applied Physics 0021-8979 2137931 http://zaguan.unizar.es/record/144638/files/texto_completo.pdf Versión publicada 2568490 http://zaguan.unizar.es/record/144638/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:144638 articulos driver 2026-02-17-20:40:41 ARTICLE