Observation of hybrid magnetic skyrmion bubbles in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Fe</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi>Sn</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math> nanodisks
Lingyao Kong, Jin Tang, Weiwei Wang, Yaodong Wu, Jialiang Jiang, Yihao Wang, Junbo Li, Yimin Xiong, Mingliang Tian, Haifeng Du
Abstract
It has been widely established that there exist two types of magnetic bubbles. Here, the authors present the theory and experiment of a novel three-dimensional bubble state, referred to as the type-III bubble, which is composed of N\'eel-twisted skyrmions with topological charge $Q$ = -1 in the near-surface layers and type-II bubbles with $Q$ = 0 in the interior layers. Furthermore, the authors demonstrate a method for creating the type-III bubble and the topological magnetic transformation among the three types of bubbles.
Topics & Concepts
SkyrmionFerromagnetismMagnetic fieldType (biology)Condensed matter physicsMagnetismPhysicsMaterials scienceGeologyQuantum mechanicsPaleontologyMagnetic properties of thin filmsCharacterization and Applications of Magnetic NanoparticlesIron oxide chemistry and applications