Electron-Assisted Generation and Straight Movement of Skyrmion Bubble in Kagome TbMn 6 Sn 6 .

Topological magnetic textures are promising candidates as binary data units for the next-generation memory device. The precise generation and convenient control of nontrivial spin topology at zero field near room temperature endows the critical advantages in skyrmionic devices but has not been simultaneously integrated into one material. Here, in the Kagome plane of quantum TbMn 6 Sn 6 , we report the expedient generation of the skyrmion bubbles in versatile forms of lattice, chain and isolated one by converging the electron beam, where the electron intensity gradient contributes to the dynamic generation from local anisotropy variation near spin reorientation transition (SRT). Encouragingly, by utilizing the dynamic shift of SRT domain interface, the straight movement is actualized with skyrmion bubble slaved to SRT domain interface forming an elastic composite object, avoiding the usual deflection from the skyrmion Hall effect. The critical contribution of the SRT domain interface via convenient electron-assisted heating source is further theoretically validated via micromagnetic simulation, highlighting the compatible application possibility in advanced device. This article is protected by copyright. All rights reserved.