Phonon sattering by nutral donors in n-type silicon |
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Authors: | D P White |
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Affiliation: | (1) Metals and Ceramics Civision, Oak Ridge National Laboratory, 37831-6376 Oak Ridge, Tennessee, USA |
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Abstract: | The scattering of phonons by neutral n-type impurities in silicon is studied. Following Keyes, who determined the phonon relaxation time for scattering by neutral impurities in n-type germanium, the relaxation time for the silicon band structure is developed. This scattering comes about due to the large effect of strain on the hydrogen-like donor ground-state energy level. The change in energy of the ground state due to the strain caused by phonons is calculated and the resulting phonon scattering relaxation rate is derived. |
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Keywords: | donors impurities phonons scattering silicon |
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