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[½»Á÷] ¡¾ÇóÖú¡¿ÇóһƪÎÄÏ×On the photoionization of deep impurity centers in semiconduct

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Photoionization of deep impurity centers in semiconductors
Robles, V. Gonzalez; Cruz, G. Gonzalez
Physical Review B, vol. 41, Issue 8, pp. 5131-5137
The frequency dependence of the photoionization cross section for deep semiconductor impurity centers is calculated using a quantum-defect wave function with the correct normalization for the bound state. The effects of nonparabolicity of the conduction and valence bands are included by using an expression for the energy-dependent wave vector based on the k.p approximation. Comparison with experiment has been made for the photoionization of manganese and copper impurities in gallium arsenide.
DOI: 10.1103/PhysRevB.41.5131
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