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Journal of Nanomaterials
Volume 2011 (2011), Article ID 367156, 6 pages
http://dx.doi.org/10.1155/2011/367156
Research Article

Room Temperature Ferromagnetism of (Mn,Fe) Codoped ZnO Nanowires Synthesized by Chemical Vapor Deposition

1School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
2Department of Physics, National Key Laboratory of Mesoscopic Physics, Peking University, Beijing 100871, China

Received 28 March 2011; Accepted 28 August 2011

Academic Editor: Steve Acquah

Copyright © 2011 Yongqin Chang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

(Mn,Fe) codoped ZnO nanowires were synthesized on silicon substrates in situ using a chemical vapor deposition method. The structure and property of the products were investigated by X-ray, electron microscopy, Raman, photoluminescence, and superconducting quantum interference device magnetometer. The doped nanowires are of pure wurtzite phase with single crystalline, and the elements distribute homogeneously in the doped nanowires. Photoluminescence spectrum of the doped nanowires is dominated by a deep-level emission with a negligible near-band-edge emission. The magnetic hysteresis curve with a coercive field of 35 Oe is clearly observed at 300 K, resulting from room-temperature ferromagnetic ordering in the (Mn,Fe) codoped ZnO nanowires, which has great potential applications for spintronics devices.