期刊
JOURNAL OF CRYSTAL GROWTH
卷 331, 期 1, 页码 44-48出版社
ELSEVIER
DOI: 10.1016/j.jcrysgro.2011.06.039
关键词
Nanostructures; Nanomaterials; Ferroelectric materials; Magnetic materials
资金
- NSFC [10675095, 10875090, 10875091]
One dimensional (Mn, Li) co-doped ZnO nanorods have been prepared using electrodeposition method at constant current mode. Room temperature ferromagnetism and ferroelectricity were found coexisted in the co-doped ZnO nanorods and the underlying mechanism were discussed. The origin of the ferroelectric behavior could be explained on the basis of the ionic radii difference between the Zn2+ (0.74 angstrom) and the dopants ions while the ferromagnetism can be explained by a bound magnetic polaron mode and influenced by oxygen vacancies. Electron microscopy results show that the nanorod is straight with a diameter of about 80-100 nm and the density of nanorods arrays is increased when the MnCl2 concentrations increase from 0.01 to 0.02 mol/L. X-ray diffraction results confirm that the ZnO nanorods arrays are polycrystalline structure and with a (002) preferential orientation. (C) 2011 Elsevier B.V. All rights reserved.
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