When a carrier collides with a phonon, both energy and momentum are conserved. Energy and momentum conservation impose constraints on the maximum wave vector change and, therefore, on which phonons ...

In the next two sections, we evaluate the scattering and momentum relaxation rates for phonon scattering. Because the same general procedure is used for all types of phonon scattering, we present the ...

“In indirect bandgap materials, like silicon, an additional component – a phonon – is needed to provide the electron the momentum necessary for the transition to occur. Since the likelihood ...

The spectrum of phonons—essentially the energy as a function of momentum—and their wave functions ... "We first computed the ...