Fig. 5: Schematic of e-ph interband scattering mechanisms.
From: When band convergence is not beneficial for thermoelectrics

They render intervalley scattering generally stronger between bands at one k-point than between bands at distant k-points.
From: When band convergence is not beneficial for thermoelectrics
They render intervalley scattering generally stronger between bands at one k-point than between bands at distant k-points.