Fig. 5: Evolution of 2nd-order strains during a single heating cycle.

Local variations of d^{Cu 111} are shown as 2nd order strain ε^{Cu 111} for the single temperature cycle (a). The histogram in the center shows the distribution of 2nd-order strains before, at maximum, and after heating (b). The color scale of the mappings is embedded in the x-axis of (b). Regions of increased tensile strain coincide with regions of increased FWHM_φ in Fig. 3a.