Klemens, Paul G. Department of Physics, University of Connecticut, Storrs, Connecticut.
Last reviewed:January 2021
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A concept in the theory of transport properties of solids which has to do with the interaction of three or more waves, such as lattice waves or electron waves, in a solid. In a continuum, such interactions occur only among waves described by wave vectors k1, k2, and so on, such that the interference condition, given by Eq. (1),
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