Effect of Mn Doping ZnO on Morphology and Magnetism Synthesized by Hydrothermal Method

稀土学报(英文版), 2006, 24(z1): 64-67.

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1.College of Physics Science & Technology, Hebei University, Baoding 071002, China

2.College of Physics Science & Technology, Hebei University, Baoding 071002, China

3.College of Physics Science & Technology, Hebei University, Baoding 071002, China

4.College of Physics Science & Technology, Hebei University, Baoding 071002, China

5.College of Physics Science & Technology, Hebei University, Baoding 071002, China

6.College of Physics Science & Technology, Hebei University, Baoding 071002, China

7.College of Physics Science & Technology, Hebei University, Baoding 071002, China

基金项目: 国家自然科学基金(50472037) 河北省自然科学基金(E2004000117;F2004000130) Technology Research Program and Bureau of Science and Technology of Hebei Province(2002158)

Effect of Mn Doping ZnO on Morphology and Magnetism Synthesized by Hydrothermal Method

Keywords： hydrothermal

The diluted magnetic semiconductor Zn1-xMnxO crystals were synthesized at 430 ℃ for 24 h by hydrothermal method. The mineralizer is 3 mol·L-1 KOH, and fill factor is 35%. The Mn concentration in crystal was determined by electron probe. The atomic percentage of Mn in crystal increases as the concentration of MnCl2·6H2O in precursor increases. The maximum of the Mn concentration in crystal is above 8%. The morphology of the crystal varies with the concentration of MnCl2·6H2O in precursor increases. And they all show the hexagonal feature of ZnO wurtzite. The measurement of magnetism was carried out by using a superconducting quantum interference device (SQUID). The crystals show low-temperature ferromagnetism with Curie temperature of 50 K.

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Effect of Mn Doping ZnO on Morphology and Magnetism Synthesized by Hydrothermal Method

参考文献