Magnetically responsive calcium carbonate microcrystals demonstrate that the calcite microcrystals obtained possess
superparamagnetic properties due to incorporated
Plasma-chemical synthesis of Fe3O4 nanoparticles for doping of high-temperature superconductors of
superparamagnetism at room temperature, and have a blocking temperature of 89 K. The peculiarities of nanoparticle
Dose dependence of ferromagnetism in Co-implanted ZnO superparamagnetic phase, which occurs due to the formation of metallic cobalt clusters in the Al2 O3 substrate