%0 Journal Article
%T Influence of the particle size reduction on magnetic properties of electron-doped Ca1-xYxMnO3
%A Alqat Aboalqasim
%A Gebrel Zohra
%A Spasojevi£¿ Vojislav
%A Kusigerski Vladan
%J Nuclear Technology and Radiation Protection
%D 2012
%I VIN?A Institute of Nuclear Sciences
%R 10.2298/ntrp1204351a
%X The electron-doped magnetic nanoparticles of Ca1-xYxMnO3 (x = 0, 0.05, 0.10, 0.15, 0.20, and 0.30) manganite with an average particle size of 50 nm are analyzed and discussed in relation to their bulk counterparts. Nanoparticle samples show dominant anti-ferromagnetic ordering with a significant increase of coercivity, with the maximum value of 0.9 T for x = 0. Particle size reduction in Ca1-xYxMnO3 retains the bulk-like magnetic behavior of samples having up to 15% of Y3+, with the small ferromagnetic contribution from disordered surface spins. Suppression of charge ordering state and enhancement of saturation magnetization were found in samples with higher Y3+ concentration (x = 0.2, 0.3), indicating high ferro-magnetic contribution in these samples. [Projekat Ministarstva nauke Republike Srbije, br. III45015]
%K electron-doped manganite
%K nanostructure
%K magnetic property
%U http://www.doiserbia.nb.rs/img/doi/1451-3994/2012/1451-39941204351A.pdf