Optimal skyrmion stability in antisymmetric ultrathin ferromagnetic bilayers
The study investigates how stray fields stabilize skyrmions in ultrathin, exchange-decoupled antisymmetric ferromagnetic bilayers. It found that the Dzyaloshinskii-Moriya interaction and dipolar interaction work together synergistically to stabilize compact skyrmions, unlike in monolayer systems where they compete. The research provides a method to predict optimal stability lines for these skyrmions.