Nanoparticle properties determined based on the topological data showing mean values of the particle density, the median particle height and the median particle diameter (+/-s.d.), each obtained on the basis of three 5 x 5 m2 scans. While the particle density decreases, particle height and particle diameter increase with increasing temperature (left). The mean sum of the volume of the exsolved particles (+/-s.d.), however, is similar after thermal reduction at different temperatures (right). Note that only the volume of the part of the particles penetrating the surface is detected. Dashed lines in b serve as a guide for the eye.
