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|Title:||Observation of room ferromagnetism in Cu-implanted crystal ZnO|
|Source:||Li, T.-J.,Li, G.-P.,Gao, X.-X.,Chen, J.-S. (2010-08). Observation of room ferromagnetism in Cu-implanted crystal ZnO. Chinese Physics Letters 27 (8) : -. ScholarBank@NUS Repository. https://doi.org/8/087501|
|Abstract:||Ion implantation technique is used to study the magnetic properties of Cu-doped ZnO. The room temperature ferromagnetism in the Cu-implanted ZnO samples is observed. From the photoluminescence spectrum of implanted samples we observe a broad green emission around 510 nm, which is related to defects in the samples. X-ray photoelectron spectroscopy measurement shows that Cu ions are in the mixed oxidation state of +1 or +2 and substitute for the Zn2+ ions of the ZnO matrix. We argue that the ferromagnetism is related to these defects, and the substitution of Cu2+ into Zn2+ sites in crystal ZnO could contribute to the observed ferromagnetism. © 2010 Chinese Physical Society and IOP Publishing Ltd.|
|Source Title:||Chinese Physics Letters|
|Appears in Collections:||Staff Publications|
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