Magnetic core-shell ZnFeO/ZnS nanocomposites for photocatalytic application under visible light.

Magnetic core-shell ZnFeO/ZnS composites were synthesized through a two-step chemical process including the hydrothermal and the co-precipitation methods. The structural characterization revealed that the composites consisted of a layer of ZnS clusters on the surface of ZnFeO nanoparticles. The band gap energy of the composite was estimated to be 2.

Magnetic and electric properties of stoichiometric BiMnO3 thin films.

It has been suggested that BiMnO3 is a material exhibiting both ferromagnetism and ferroelectricity. Stoichiometry is rather easily achieved in a polycrystalline sample, and ferromagnetic properties have been well documented for bulk samples. Stoichiometry in thin films has been difficult to obtain, and many physical properties have exhibit wide distributions mainly due to the stoichiometry problem.