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Observation of Various and Spontaneous Magnetic Skyrmionic Bubbles at Room Temperature in a Frustrated Kagome Magnet with Uniaxial Magnetic Anisotropy
Author(s) -
Hou Zhipeng,
Ren Weijun,
Ding Bei,
Xu Guizhou,
Wang Yue,
Yang Bing,
Zhang Qiang,
Zhang Ying,
Liu Enke,
Xu Feng,
Wang Wenhong,
Wu Guangheng,
Zhang Xixiang,
Shen Baogen,
Zhang Zhidong
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201701144
Subject(s) - spintronics , skyrmion , condensed matter physics , magnet , spin (aerodynamics) , materials science , magnetization , magnetic anisotropy , anisotropy , magnetic field , physics , ferromagnetism , optics , quantum mechanics , thermodynamics
The quest for materials hosting topologically protected skyrmionic spin textures continues to be fueled by the promise of novel devices. Although many materials have demonstrated the existence of such spin textures, major challenges remain to be addressed before devices based on magnetic skyrmions can be realized. For example, being able to create and manipulate skyrmionic spin textures at room temperature is of great importance for further technological applications because they can adapt to various external stimuli acting as information carriers in spintronic devices. Here, the first observation of skyrmionic magnetic bubbles with variable topological spin textures formed at room temperature in a frustrated kagome Fe 3 Sn 2 magnet with uniaxial magnetic anisotropy is reported. The magnetization dynamics are investigated using in situ Lorentz transmission electron microscopy, revealing that the transformation between different magnetic bubbles and domains is via the motion of Bloch lines driven by an applied external magnetic field. These results demonstrate that Fe 3 Sn 2 facilitates a unique magnetic control of topological spin textures at room temperature, making it a promising candidate for further skyrmion‐based spintronic devices.