Almessiere, Munirah AbdullahSlimani, YassineGüngüneş, HakanDemir Korkmaz, AyşeTrukhanov, Sergei V.Güner, SadıkBaykal, Abdulhadi2021-11-012021-11-012021Almessiere, M. A., Slimani, Y., Güngüneş, H., Korkmaz, A. D., Trukhanov, S. V., Guner, S., ... & Baykal, A. (2021). Correlation between chemical composition, electrical, magnetic and microwave properties in Dy-substituted Ni-Cu-Zn ferrites. Materials Science and Engineering: B, 270, 115202.0921-51071873-4944https://doi.org/10.1016/j.mseb.2021.115202https://hdl.handle.net/11491/7516Dy3+ ion-substituted nanoferrites Ni0.4Cu0.2Zn0.4Fe2_ xDyxO4 (x <= 0.04) were produced via sol-gel method. Correlation between chemical composition, crystal structure, electrical, magnetic and microwave properties was investigated. All samples were characterized by single-phase state. It was observed that the increase of the Dy content leads to a decrease in the average crystallite size. The bandgap (Eg) was deduced to be between 1.83 and 1.86 eV. The measurements of magnetization versus applied magnetic field (M-H) and magnetization versus temperature (M-T) were investigated by vibrating sample magnetometer (VSM). Magnetic measurements revealed superparamagnetic character at room temperature. The magnetization was increased initially with doping Dy3+ in the ratio of x = 0.01 compering to the un-doped sample and thereafter dropped as Dy3+ ions content further increases. Microwave properties were discussed in terms of electromagnetic absorption in the frequency range 1-20 GHz. The occurrences of the intensive electromagnetic absorption in the frequency ranged from 1.6 to 2.7 GHz were observed. The changes in the amplitude-frequency characteristics correlated well with the level of chemical substitution (x) with Dy ions concentration.eninfo:eu-repo/semantics/closedAccessSpinel ferritesNanoparticlesMagnetic propertiesMicrowave propertiesDomain boundaries resonanceArticle27010.1016/j.mseb.2021.115202Q2WOS:0006635327000052-s2.0-85105074107Q1