Magnetic Properties of One-Dimensional Sm-Doped ZnO Nanostructures Fabricated by Hydrothermal Method

• Published in: Journal of superconductivity and novel magnetism 2013-06, Vol.26 (6), p.2171-2173
• Main Authors: Lin, C. C., Kung, C. Y., Young, S. L., Chen, H. Z., Kao, M. C., Horng, Lance, Shih, Y. T., Ou, C. R., Lin, C. H.
• Format: Article
• Language: English
• Subjects: Characterization and Evaluation of Materials; Coercive force; Condensed Matter Physics; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Domain effects, magnetization curves, and hysteresis; Doping; Exact sciences and technology; Ferromagnetism; Magnetic Materials; Magnetic properties and materials; Magnetism; Magnetization; Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects; Nanorods; Nanostructure; Original Paper; Physics; Physics and Astronomy; Strongly Correlated Systems; Superconductivity; Wurtzite; Zinc oxide
• ISSN: 1557-1939; 1557-1947
• DOI: 10.1007/s10948-012-1900-y

Well-defined ZnO and Sm-doped nanorods have been successfully fabricated by a low temperature hydrothermal process. The XRD patterns of both compositions with a single diffraction peak (002) show the same wurtzite hexagonal structure. The radius of Sm-ZnO nanorods observed by FE-SEM is smaller than that of pure ZnO, indicating a reduction of the growth rate by the doping of Sm. Ferromagnetism is observed from the results of the magnetization measurements. The increase of the saturation magnetization and decrease of coercivity reveal an association with the increase of oxygen vacancies induced by the doping of Sm in the nanorods.