Bizmut adsorbe eden çinko oksit nanotellerin manyetik işlevselleşmesi [TR].

The adsorption of bismuth atom on the surface of zinc oxide nanowires is investigated by carrying out density-functional calculations with Hubbard U correction. Geometry optimizations are performed for a number of adatom configurations, and the adsorption energies and magnetic moments are calculated. The lowest-energy adatom configuration is thus determined. It is found that this configuration possess a canted magnetic moment. This means that the orientation of the magnetic moment vector can be controlled by applying an external magnetic field. Band structure calculations reveal that the existence of this intrinsic magnetic moment causes a exchange splitting of the lower conduction band states. These findings show that the adsorption of bismuth leads to magnetic functionalization of zinc oxide nanowires. [ABSTRACT FROM AUTHOR]