We use atomistic-based simulations to investigate the behavior of ferromagnetic skyrmions being continuously compressed against a rigid wall under dc and ac drives. The compressed skyrmions can be annihilated close to the wall and form a conformal crystal with both a size and a density gradient. making it distinct from conformal crystals observed previously for superconducting vortice... https://4thmoontoyers.shop/product-category/mid-moc/