[15p-2J-1~10] Forefront of research on atomic and nano-scaled functionalities in oxides

[15p-2J-4] Real-space observation of skyrmion formation in a manganite thin film

〇Masao Nakamura¹, Daisuke Morikawa¹, Yu Xiuzhen¹, Fumitaka Kagawa¹, Takahisa Arima^1,2, Masashi Kawasaki^1,3, Yoshinori Tokura^1,3 (1.RIKEN-CEMS, 2.Dep. Adv. Mat. Sci. Univ. of Tokyo, 3.Dep. Appl. Phys. Univ. of Tokyo)

Keywords:skyrmion,manganite,Magnetic-force microscope (MFM)

A thin film of Ru-doped perovskite manganite with controlled perpendicular magnetic anisotropy shows a large topological Hall effect originated from skyrmion formation. In this study, we carried out real-space observations of the magnetic domain structure in the film by using a magnetic force microscope (MFM) and Lorenz transmission electron microscope (LTEM). We successfully observed skyrmions with a diameter of about 100 nm at a magnetic field of 70 mT.