Figure 9
Variation of the fraction (σ) of the α-phase as a function of pillar width L a as observed experimentally (open circles) and as predicted by Eq. 6 completed with the dimensionless function f(u), for a given temperature (T 0 = RT). The dashed line corresponds to the experimental data from the continuous MnAs film: σ ∞ = 72.7%. This value has been used in Eq. 6 to obtain the red plain curve (no fitting parameter). Inset: Schematic drawing of the elastically strained region (purple) in MnAs layers of constant width and increasing height (orange).
