Abstract
Magnetic skyrmion bubbles are swirling magnetic textures with novel characteristics suitable for future applications in spintronic devices. Here, high-density nanometric bubbles are obtained by adding C element in biskyrmion-host MnNiGa materials. Furthermore, the diversified topological spin configurations of nanometric bubbles are manipulated by combining electric current with perpendicular magnetic fields. Different magnetic bubble states including the homogeneous skyrmion bubble state are achieved via electromagnetic manipulation. Via analysing the different magnetic textures obtained via electromagnetic manipulation, we infer that the topological spin configurations of magnetic bubbles are closely related to the relative intensity of external fields applied as magnetic bubbles nucleate.
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