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水热法合成Zn1-xMnxO稀磁半导体
  • 期刊名称:人工晶体学报, 35,1:95(2006)
  • 时间:0
  • 分类:O782[理学—晶体学]
  • 作者机构:[1]河北大学物理科学与技术学院,保定071002
  • 相关基金:Project supported by Natural Science Foundation of China (No. 50472037 ) and Hebei Province of China (E2014000117, F2004000130) and the Science and Technology Research Program and Bureau of Science and Technology of Hebei Province ( No. 2002158)
  • 相关项目:水热法合成MnxZn1-xO稀磁半导体晶体
中文摘要:

本文采用水热法在430℃,以3mol%·L^-1 KOH作矿化剂,填充度为35%,反应时间24h,合成了Zn1-xMnxO稀磁半导体晶体。所合成晶体具有ZnO纤锌矿结构,晶面显露正极面{0001}、负极面{0001}、菱面{1011}及负菱面{1011}晶体高度为5-30μm,径高比约为2:1。X荧光能谱(EDS)显示Mn原子百分浓度为2.6%(x=0.026)。晶体呈现低温铁磁性,居里温度50K。

英文摘要:

Diluted magnetic semiconductor Zn1-x, Mn, O crystals were synthesized at 430℃ for 24h by hydrothermal method. 3mol%·L^-1 KOH was used as the mineralizer, and the fill factor is 35%. The obtained crystals show a ZnO wurtzite structure, with positive polar faces {0001} , negative polar faces {0001}, p faces {1011} and -p faces {1011} exposed. The height of the crystal is 5-30μm and radiusheight ratio is 2 : 1. Mn atom concentration of 2.6% (x = 0. 026) was determined using X-ray energy dispersive spectroscopy (EDS). The crystals show low-temperature ferromagnetism with Curie temnerature of 50K.

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