Zn_0.9Co_0.1O/ MCM-41 Composite: Synthesis and Magnetism

Abstract:

Cobalt doped zinc oxide diluted magnetic semiconductors (DMSs) were assembled in MCM-41 template by sol-gel method. Samples were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), physisorption, as well as the magnetism measurement. It was found that the wurtzite symmetry of the MCM-41 pores was not changed while the pore diameter became smaller after the DMSs deposited into the pores. The Zn0.9Co0.1O-MCM-41 presents a superparamagnetic behavior between 80K and 300K, while Zn0.9TM0.1O-MCM-41 (TM=Mn, Fe, Ni) samples are paramagnetic at the same temperature range.

• Periodical: Advanced Materials Research (Volume 266)
• Pages: 80-83
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.266.80
• Online since: June 2011
• Authors: W. B. Liu, Ying Tang Zhang, X. X. Li, S. X. Liu, Z. Y. Chen, P. Che
• Keywords: Assemble, Diluted Magnetic Semiconductor (DMS), Magnetic Property

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