| 稀释磁性半导体Zn1—xFexSe薄膜的光学特性 |
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| 引用本文： | 熊光英 董健. 稀释磁性半导体Zn1—xFexSe薄膜的光学特性[J]. 光学学报, 1993, 13(5): 70-474 |
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| 作者姓名： | 熊光英 董健 |
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| 作者单位： | 山东师范大学半导体所 济南250014(熊光英)，山东师范大学计算机中心 济南250014(董健) |
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| 基金项目： | 高等学校博士学科点专项科研基金资助课题 |
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| 摘 要： | 用真空蒸镀法制备了稀释磁性半导体Zn_(1-x)Fe_xSe多晶薄膜,用X射线衍射和电子扫描电镜测定了薄膜结构和成份.其光吸收数据表明:光学能隙E_g随着Fe~(2+)成分x增加而线性减小,用线性回归法拟合得其关系.E_g=2.722-2.2x(eV).
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| 关 键 词： | 磁性半导体 薄膜 能隙 光学性质 |
| 收稿时间： | 1992-04-13 |
Optical properties of the diluted magnetic semiconductors Zn_(1-x)Fe_xSe thin films |
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| XIONG Guangying. Optical properties of the diluted magnetic semiconductors Zn_(1-x)Fe_xSe thin films[J]. Acta Optica Sinica, 1993, 13(5): 70-474 |
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| Authors: | XIONG Guangying |
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| Abstract: | The polycrystal thin films of the diluted magnetic semiconductors Zn1-xFexSe were prepared by vacuum evaporation. The structure and composition of the films were examined by X-ray diffraction and scanning electron microscopy. Optical absorption data showed that the energy gap E 8 decreases linearly with the composition x of Fe2+ ions. The best fitted relation isEg = 2. 722 - 2. 224x. |
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| Keywords: | diluted magnetic semiconductor optical energy gap absorption coefficient. |
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