本文采用水热法在430℃,以3mol%·L-1KOH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.
Diluted magnetic semiconductor Zn1-x MnxO crystals were synthesized at 430℃ for 24h by 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 temperature of 5OK.
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