Fig. 7: Phonon-limited mobility ratio at several temperatures.
From: Phonon-limited mobility for electrons and holes in highly-strained silicon

Relative variations of the phonon-limited mobilities with regards to the longitudinal strain for the electrons (blue for the longitudinal component and green for the transverse one) and the holes (red for the longitudinal component and orange for the transverse one) for a temperature of 200 K (dotted lines), 300 K (continuous lines), and 400 K (dashed lines). The zero-strain mobility is taken as a reference to compute the relative variations.