Tuning hyperthermia properties of FeNiCo ternary alloy nanoparticles by morphological and magnetic characteristics

AuthorsAlireza Salati, Abdolali Ramazani, Mohammad Almasi Kashi
JournalJournal of Magnetism and Magnetic Materials
Presented byدانشگاه کاشان
Page number166172
Volume number498
Paper TypeFull Paper
Published At2020/3/15
Journal GradeISI
Journal TypeTypographic
Journal CountryUnited States

Abstract

While the research field of hyperthermia has long focused on magnetic oxides and two-component alloy nanostructures, ternary magnetic alloy nanoparticles (NPs) have not been thoroughly investigated and understood so far. In this study, we synthesized FeNiCo ternary alloy NPs with variable compositions by a facile polyol method. By investigating morphological and magnetic properties using field-emission scanning electron microscopy, hysteresis loop measurements and first-order reversal curve analysis, we found average NP size, saturation magnetization, coercivity (HC) and coercive field distribution (ΔHc) to range between ~60–230 nm, 65–109 emu/g, 33–98 Oe and 0–650 Oe, respectively. Hyperthermia measurements were performed under an alternating magnetic field with intensity of 400 Oe at a frequency of 400 kHz, leading to maximum specific loss power (SLP) values ranging from 237 to 298 W/g in …