Physics of the Solid State
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Influence of functionalization with citric acid on the properties of magnetic nanoparticles ZnxFe3-xO4 (0≤ x≤ 1.0)
Kamzin A. S.1, Caliskan G.2, Dogan N.2, Bingolbali A.3, Semenov V. G4, Buryanenko I. V.5
1Ioffe Institute, St. Petersburg, Russia
2Department of Physics, Gebze Technical University, Kocaeli, Turkey
3Department of Bioengineering, Yi ldi z Technical University, Istanbul, Turkey
4St. Petersburg State University, St. Petersburg, Russia
5Peter the Great Saint-Petersburg Polytechnic University, St. Petersburg, Russia
Email: ASKam@mail.ioffe.ru

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The effect of surface functionalization with citric acid on the properties of magnetic nanoparticles (MNPs) ZnxFe3-xO4 (x=0; 0.25; 0.5; 0.75; 1.0) synthesized by the hydrothermal method was studied. To study the properties of MNPs, X-ray diffractometry (XRD) and energy dispersive X-ray spectroscopy (EDS) were used. The magnetic properties of the samples and the phase state of MNPs were studied using a physical property measurement system (PPMS) and Mossbauer spectroscopy (MS). It has been established that the sizes of crystallites and the crystal lattice parameter of ZnxFe3-xO4 MNPs change with increasing Zn2+ concentration. The low values of the coercive force and the presence of a doublet on the MS indicate the presence of both ferrimagnetic and superparamagnetic components. Keywords: ZnxFe3-xO4 ferrite spinel MNPs, hydrothermal synthesis, functionalization of MNPs with citric acid, crystal structure, magnetic properties, magnetic structure.
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