Effect of normal phonon-phonon scattering on the phonon relaxation time for metals |
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Authors: | M Kaveh |
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Institution: | Department of Physics, Bar-Ilan University, Ramat-Gan, Israel |
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Abstract: | The phonon-phonon scattering relaxation time for metals is derived by an analysis that explicitly incorporates the Peierls condition that normal phonon-phonon scattering cannot equilibrate the phonon system. Numerical results are presented for potassium. These results demonstrate that at low temperatures, the Peierls condition leads to a very significant reduction of phonon-phonon scattering. |
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