| 双抛量子阱中类氢杂质的结合能 |
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| 引用本文： | 郝剑红,闫发旺.双抛量子阱中类氢杂质的结合能[J].河北师范大学学报(自然科学版),1999,23(2):209-214. |
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| 作者姓名： | 郝剑红 闫发旺 |
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| 作者单位： | [1]石家庄师范专科学校物理系 [2]河北师范大学物理系 |
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| 摘 要： | 以ＧａＡｓ／Ｇａ１－ｘＡｌｘＡｓ为例，在有效质量的近似下，讨论了双抛量了阱吕类氢杂质的结合能，结果表明：（１）双方量子阱中类氢杂质的结合能是双抛阱中杂质结合能的１．３倍；（２）无论杂质在阱中还是垒中，不仅垒宽和阱宽影响其结合能，而且Ａｌ的掺杂度ｘ也是影响结合能的一个重要因素。
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| 关 键 词： | 类氢杂质 结合能 量子阱 双抛量子阱 半导体 |
Binding Energy of a Hydrogenic Impurity in Double Parabolic Quantum Wells |
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| HAO Jian hong ,YAN Fa wang ,LI You cheng.Binding Energy of a Hydrogenic Impurity in Double Parabolic Quantum Wells[J].Journal of Hebei Normal University,1999,23(2):209-214. |
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| Authors: | HAO Jian hong YAN Fa wang LI You cheng |
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| Institution: | HAO Jian hong 1,YAN Fa wang 2,LI You cheng 2 |
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| Abstract: | Considering the effective mass appoximation and taking the GaAs/Ga 1 x Al x As for example,we investigate the binding energy of a hydrogenic impurity in the double parabolic quantum well(DPQW).The results show that: (1)The binding energy of a hydrogenic impurity in the double square quantum well (DSQW) is about 1.3 times larger than in DPQW;(2)No matter where the shallow donor is, the barrier thickness( L b),the well width ( L W) and the donor composition( x )all affect the binding energy( E b)greatly. |
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| Keywords: | hydrogentic impurity binding energy double square quantum well (DSQW) double parabolic quantum well (DPQW) |
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