Here, we investigated the details of magnetic skyrmion bubble domain formation by a tilted magnetic field. The in-plane component of the magnetic field serves to reduce the width of the stripe domain. These stripe domains are easily broken and bubble domains are formed. We have demonstrated that the key parameter determining the stripe domain instability is the stripe width, regardless of other material parameters. This bubble generation method can be applicable to generic magnetic films with perpendicular magnetic anisotropy. Our work will facilitate the development of skyrmion-based devices by offering a general method for controlling a large skyrmion population.
- Kyoung-Woong Moon
- Seungmo Yang
- Chanyong Hwang
