Synthesis and magnetic properties of Mn-doped ZnO nanorods via radio frequency plasma deposition

Well-aligned Mn-doped ZnO nanorods were synthesized by simple radio frequency (RF) plasma deposition in the absence of extra catalysts. The synthesized nanorods having a typical average diameter of about 25 nm, were about 310 nm in length and well-aligned along the normal direction of the substrate....

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Bibliographic Details
Published in:Materials letters 2010-02, Vol.64 (3), p.472-474
Main Authors: Wu, Z.F., Wu, X.M., Zhuge, L.J., Hong, B., Yang, X.M., Chen, X.M., Chen, Q.
Format: Article
Language:English
Subjects:
Magnetic materials
Mn-doped ZnO
Nanomaterials
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Summary:Well-aligned Mn-doped ZnO nanorods were synthesized by simple radio frequency (RF) plasma deposition in the absence of extra catalysts. The synthesized nanorods having a typical average diameter of about 25 nm, were about 310 nm in length and well-aligned along the normal direction of the substrate. Magnetic measurements indicate that the nanorods are ferromagnetic at room temperature (RT). The presence of considerable shallow donor defects in the nanorods does allow possible defect mediated mechanisms (e.g., bound magnetic polarons) for mediating exchange coupling of the dopant Mn ions resulting in RT ferromagnetism.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2009.11.053