“…The rotation phenomenon during coarsening has been widely investigated by experimental and numerical methods, 8,16,32 and it is generally believed that the rotation is driven by gradients in interface energy concerning the misorientation. 9 However, as the interface energy is composed of grain boundary energy and phase boundary energy, the properties of grain boundaries and the interaction strength between the substrates and the particles could affect the rotation process; 7,8,32 thus it is hard to reveal the rotation kinetic mechanism for real multi-particle coarsening systems. Herein, we examined the effect of lattice mismatch on the rotation process of supported nanoparticles at the atomic scale.…”