Moiré-driven skyrmion family

Skyrmion family members, including skyrmions, merons, and skyrmioniums, have been observed in diverse physical systems, yet their coexistence and transformation within a single controllable platform remain challenging. Here, we propose and experimentally demonstrate a bilayer twisted moiré elastic system that enables the generation of multiple skyrmion family members with different topological charges. By constructing three-dimensional displacement vector fields, we establish a framework describing the evolution of topological invariants under twist-induced symmetry modulation, thereby governing controlled transitions and the stable coexistence of different skyrmion textures. In addition, manipulating the Lamb-wave phase introduces discontinuous transport of the topological textures, thereby revealing phason-like dynamics within the quasiperiodic structure. Together, these results provide a versatile route for controlling topological textures and open new possibilities for the design of integrated topological wave devices.