Розрахунок енергiї iонiзацiї основного стану мiлких донорiв в Δ1-моделi зони провiдностi монокристалiв n-Ge
On the basis of the Ritz variational method, the ionization energies for the ground states of Sb, P, and As donors in n-Ge single crystals are calculated in the framework of the Δ1-model for the conduction band and taking the dispersion law anisotropy and the chemical shift into account. A compariso...
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| Date: | 2019 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English Ukrainian |
| Published: |
Publishing house "Academperiodika"
2019
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| Subjects: | |
| Online Access: | https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019159 |
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| Journal Title: | Ukrainian Journal of Physics |
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Ukrainian Journal of Physics| Summary: | On the basis of the Ritz variational method, the ionization energies for the ground states of Sb, P, and As donors in n-Ge single crystals are calculated in the framework of the Δ1-model for the conduction band and taking the dispersion law anisotropy and the chemical shift into account. A comparison of theoretical results with corresponding experimental data shows that the model of impurity’s Coulomb potential can be used as a rough approximation only for Sbimpurities in Ge, making no allowance for the chemical shift. For the P and As impurities, when the potential field of an impurity ion is not Coulombic, the calculations have to be carried out with regard for a chemical shift. |
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