| AlGaAs/GaAs超晶格价带的自旋劈裂 |
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| 引用本文： | 田园,张宝林,彭宇恒,陈维友.AlGaAs/GaAs超晶格价带的自旋劈裂[J].吉林大学学报(理学版),1997(3). |
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| 作者姓名： | 田园 张宝林 彭宇恒 陈维友 |
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| 作者单位： | 中国科学院长春物理研究所!长春，130021(田园，张宝林)，吉林大学电子工程系!长春，130023(彭宇恒，陈维友) |
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| 摘 要： | 对由Al_yGa_(1－y_As，Al_xGa_(1-x)As和GaAs三种材料构成的超晶格价带的自旋劈裂进行了研究．通过改变材料组分和层厚，发现当超晶格单胞对其中心点是不对称结构时，对应的自族向上和自族向下的子带产生劈裂，而且劈裂主要发生在重空穴带和轻空穴带相互作用较强的地方．
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| 关 键 词： | 能带结构 AlGaAs／GaAs超晶格 自旅劈裂 |
The Spin-splitting of Valence-band with GaAlAs/GaAs Superlattices |
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| Tian Yuan, Zhang Baolin.The Spin-splitting of Valence-band with GaAlAs/GaAs Superlattices[J].Journal of Jilin University: Sci Ed,1997(3). |
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| Authors: | Tian Yuan Zhang Baolin |
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| Abstract: | The present paper deals with the spin-splitting on the valence-band state of triple-constituent material superlattices: AlyGa1-yAs, AlxGa1-xAs and GaAs. By varying the material compositions or the layer thickness, we observed that the sub-bands corresponding to the spin-up and spindown split when the superlattice unit-cell was asymmetrical about the cell center. Moreover, the splitting mainly occurs in the region where the heavy hole and light hole interact on each other strongly. |
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| Keywords: | energy band structure AlGaAs/GaAs superlattice spin-splitting |
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