Cation distribution correlated with magnetic properties of cobalt ferrite nanoparticles defective by vanadium doping

摘要: Abstract Nanoparticles cobalt ferrite, vacancies defective through vanadium substitution for iron, were synthesized by a sol-gel method. Two systems CoFe2-xVxO4 (0.0 ≤ x ≤ 0.25) and CoFe2-1.67xVxO4 (x = 0.1, 0.2) prepared. The crystal structure, microstructure magnetic properties investigated using XRD, SEM VSM magnetometer. occupancy of tetrahedral octahedral sites different cations was determined Rietveld analysis correlated with measurements. Vanadium resides at up to x = 0.10, while higher values it mainly lesser amount the tetrahedrons. Upon increasing content, cell parameter decreases bond lengths change opposite each other. in coercivity saturation magnetization is cation distribution. For same doping x, iron deficient samples have obviously reduced than corresponding CoFe2-xVxO4. spin canting between A- B- discussed details based on Yafet–Kittel triangular arrangement model.