Enhancement of co substitution induced by Eu codoping in ZnO-based diluted magnetic semiconducting thin films
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Date
2010-02
Journal Title
Journal ISSN
Volume Title
Publisher
American Institute of Physics
Abstract
To avoid the occurrence of doped magnetic ion clustering is a challenge in fabrication of diluted magnetic semiconductors (DMSs). In this work, we report the intrinsic ferromagnetic behavior in Co-doped ZnO DMSs induced by Eu codoping. Both structural parameters and magnetic properties demonstrate the existence of an interaction between Co and Eu ions. The observation of multiplet structures for the localized Co 3d states in x-ray absorption and x-ray magnetic circular dichroism characterization evidences that the codoped Eu plays an important role in facilitating the Co substitution of Zn, leading to intrinsic ferromagnetism. © 2010, American Institute of Physics
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Keywords
Cobalt, Zinc compounds, Europium, Magnetic semiconductors, Magnetic circular dichroism, Ferromagnetism
Citation
Photongkam, P., Zhang, Y. B., Assadi, M. H. N., Li, S., Yu, D., Ionescu, M., & Pan, A. V. (2010) Enhancement of co substitution induced by Eu codoping in ZnO-based diluted magnetic semiconducting thin films. Journal of Applied Physics, 107(3), 4. doi:10.1063/1.3298507