Abstract
An overlay technique is used to measure S‐state stability of bubbles in YEuGaFeO films. It is found that for comparable drive amplitudes, translational motion is more severe than radial motion. Additionally, the direction of in‐plane field and easy axis tilt are significant. The need for ion‐implantation, while having little effect on stable drive amplitude, is reaffirmed as necessary for state control. Reduction of film thickness increases stability, but is offset by increased coercivity.