Abstract
We report on the magnetic and structural properties of 2% and 4% Co-doped ZnO diluted magnetic semiconductors prepared by mechanosynthesis. We show that this low-temperature preparation technique does not allow obtaining ferromagnetism in such materials, as already observed in samples prepared by high-temperature techniques. Although X-ray diffraction and UV–Vis spectroscopy indicate that Co ions are well inserted in the ZnO würtzite structure and that mechanosynthesis is susceptible to generate thermodynamically unstable defects, ferromagnetism observed at 5 and 295 K is systematically attributed to parasitic phases. The pure ZnO:Co phase presents no ferromagnetism in agreement with the high temperature prepared samples.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
