C use cw for low temperatures and bh for high

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Unformatted text preview: s that the scattering potential is screened. c) It assumes that scattering from different impurities is phase incoherent. d) It is elastic. e) It gets weaker as the energy of the carrier increases 4) How does one decide whether to use the BH approach or the CW approach? a) Use CW when the maximum impact parameter is greater than the Debye length. b) Use CW when the maximum impact parameter is less than the Deb...
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