Direct writing of room temperature and zero field skyrmion lattices by a scanning local magnetic field

• DOI: 10.1063/1.5021172
• Publication Date: 2018-03-29T15:08:51Z
• Authors: Senfu Zhang; Junwei Zhang; Qiang Zhang; Craig Barton; Volker Neu; Yuelei Zhao; Zhipeng Hou; Yan Wen; Chen Gong; Olga Kazakova; Wenhong Wang; Yong Peng; Dmitry A. Garanin; Eugene M. Chudnovsky; Xixiang Zhang
• Keywords: Skyrmion; Lattice (music); Lorentz force

Magnetic skyrmions are topologically protected nanoscale spin textures exhibiting fascinating physical behaviors. Recent observations of room temperature in sputtered multilayer films an important step towards their use ultra-low power devices. Such practical applications prefer to be stable at zero magnetic fields and temperature. Here, we report the creation skyrmion lattices Pt/Co/Ta multilayers by a scanning local field using force microscopy tips. We also show that those newly created both fields. Lorentz transmission electron measurements reveal our Néel-type. To gain deeper understanding mechanism behind lattice fields, perform micromagnetic simulations find experimental results agreement with simulation data. This study opens another avenue for thin films.