Spinel ferrite/MnO core/shell nanoparticles: chemical synthesis of all-oxide exchange biased architectures.
In this communication, we report the synthesis and characterization of organic-capped core/shell CoFe2O4/MnO nanoparticles. Magnetic properties of the core/shell nanoparticles were compared to those of individual CoFe2O4 and MnO nanoparticles prepared with similar methods. Magnetic measurements revealed that the core/shell nanoparticles displayed a shift in the hysteresis loops corresponding to exchange biasing exchange fields of about 0.6 kOe, due to the ferrimagnetic/antiferromagnetic interface.
Materials Department and Materials Research Laboratory, University of California, Santa Barbara, California 93106, USA.
Ombretta
O
Masala
Ram
R
Seshadri