Quantitative analysis of the magnetic properties of a mixture of single- and multi-domain Zn-substituted CuFe2O4 nanoparticles with canted spin

Spectroscopic analysis of nanosized Zn(Ag, Ni)O systems and observation of superparamagnetism at low temperature

“…Still, for systems with a size distribution, the blocking temperature is distributed due to variation in the particle size, and cusp-like features were observed. 27,28 Another reason for such a shape of the ZFC curve may be the distribution of point defects over the whole particle region. 29,30 We don't observe any spin freezing in the FC/ZFC curve down to the lowest temperature.…”