Magnetic resonance study of Ce and Gd doped NiFe2O4 nanoparticles

► Present work is a study of temperature dependant magnetic resonance spectra of Ce and Gd doped nickel ferrite nanoparticles. ► There are not many reports on EPR spectra of rare earth doped ferrite systems. ► Magnetic measurement by VSM shows that magnetisation and coercivity are reduced after doping with Ce and Gd ions. ► EPR line width is reduced with Ce and Gd doping so rare earth doped nickel ferrite shows low energy loss at high frequency.