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室温和350℃下注Mn的GaAs/AlGaAs超晶格的磁学性质
Authors
王占国
王春华
陈涌海
Publication date
1 January 2004
Publisher
Abstract
通过室温和350℃注Mn后热退火,在GaAs/AlGaAs超晶格中引入了不同的亚微米磁性颗粒.利用原子力显微镜、能量散射X射线谱、X射线衍射和交变梯度磁强计研究了该颗粒膜材料的结构和磁学性质.通过比较这些颗粒的饱和磁化强度、剩余磁化强度、矫顽力和剩磁比,发现350℃注Mn的样品含有MnGa和MnAs两种磁性颗粒,而室温注Mn的样品主要含有MnAs颗粒
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Last time updated on 15/03/2019