Article ID Journal Published Year Pages File Type
1682657 Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2015 5 Pages PDF
Abstract

•Co implantation in ZnO single crystal introduces paramagnetic and ferromagnetic phases.•Electron and proton irradiations have no effect on crystal magnetic properties.•Co ions seem to stabilize the radiation defects.

To elucidate the interaction between defects and transition metal impurities in creating magnetic properties in wide band-gap semiconductors, single crystals of ZnO were irradiated with high-energy electrons, protons and Co ions. Magnetization of samples was measured before and after room temperature irradiation. The measurements reveal that only Co implantation creates measurable magnetization, which is related to the simultaneous introduction of defects. Consequences of the experimental results are discussed.

Related Topics
Physical Sciences and Engineering Materials Science Surfaces, Coatings and Films
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