Electron-phonon interaction and phonon conductivity in Li-doped silicon with intermediate donor concentration |
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Authors: | MK Roy |
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Institution: | (1) Department of Physics, University of Chittagong, Chittagong, Bangladesh, BD |
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Abstract: | Phonon conductivity in intermediately doped n-type silicon still remains unexplained. In this paper we have calculated the
phonon conductivity in Li-doped silicon for Nex < Nc using Mikoshiba's inhomogeneity model. We have introduced spherical polar coordinates for the phonon polarization vectors
in Sota and Suzuki's theory in order to take into account the realistic picture of the scattered phonons. Deformation potential
for different polarizations λ has been evaluated for the metallic region. Present calculations show that Mikoshiba's inhomogeneity
model is able to explain the phonon conductivity of Li-doped silicon having intermediate donor concentration very well.
Received 18 May 2001 / Received in final form 4 July 2002 Published online 19 December 2002
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ID="a"e-mail: mkroy@ctgu.edu |
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Keywords: | PACS 63 20 kr Phonon-electron and phonon-phonon interactions – 66 70 +f Nonelectronic thermal conduction and heat-pulse propagation in solids thermal waves |
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