Size-dependent magnetism of EuS nanoparticles.
EuS nanoparticles were synthesized by solution-phase thermolysis of the diethylammonium salt of the anionic europium dithiocarbamate complex, [Eu(S2CNEt2)4]-. Oleylamine and triphenylphosphine were used as surfactants to prevent nanoparticle agglomeration and stabilize particle growth. By varying the synthetic parameters such as reaction temperature, heating time, and the [surfactant]: [precursor] ratio, nanoparticles of different sizes were obtained. The size-dependent magnetic properties of these nanoparticles were studied, and it was observed that a decrease in the ferromagnetic ordering temperature occurs with decreasing particle size.
|Main Author:||Regulacio, Michelle.|
|Other Authors:||Kar, Srotoswini., Zuniga, Edward., Wang, Guangbin., Dollahon, Norman., Yee, Gordon., Stoll, Sarah.|