Structural transition of skyrmion quasiparticles under compression

The competition between external drives and interparticle interactions are important for the static dynamic properties of topological quasiparticles in confined geometries. Here, we study dynamics particlelike skyrmions under a current-induced compression, where stabilized space form skyrmion solid. We find that lattice structural transition nanoscale could be induced by which depends on initial configuration compression level. effect solid with strong skyrmion-skyrmion repulsion produce wave front showing an abrupt change density, may propagate through depending Besides, chain surface compressed show fast stable motion along as long it remains within driving region. Some collapse during due to destructive collision, mainly happens area around injection boundary compressive regions. Our results useful understanding physics carrying nontrivial topology.