Characterization of spintronic devices

抄録

I will present some examples of characterization of spintronic devices, such as observation of the magnetic vortex core by magnetic force microscopy (MFM) [1], observation of the current-induced domain wall motion by MFM [2,3], observation of the current-induced magnetic vortex core switching by MFM [4], observation of the current-induced dynamics of magnetic vortex core by time-resolved X-ray microscope [5], observation of the skyrmion Hall effect by Kerr microscopy [6], compositonal-gradient-induced Dzyaloshinskii–Moriya interaction investigated by scanning trasmission electron microscope [7], visualization of the three-dimensional shape of skyrmion strings by magnetic X-ray tomography [8]. The work is support by MEXT, JSPS, NEDO, MEXT X-NICS Grant Number JPJ011438, the Cooperative Research Project Program of the Research Institute of Electrical Communication, Tohoku University, and the Collaborative Research Program of the Institute for Chemical Research, Kyoto University. [1] T. Shinjo et al., Science 289, 930 (2000). [2] A. Yamaguchi et al., Phys. Rev. Lett. 92, 077205 (2004). [3] H. Tanigawa et al., Appl. Phys. Express 1, 011301 (2008). [4] S. Kasai et al., Phys. Rev. Lett. 97, 107204 (2006). [5] K. Yamada et al., Nature Materials 6, 269 (2007). [6] Y. Hirata et al., Nature Nanotechnology 14, 232 (2019) [7] D.-H. Kim et al., Nature Materials 18, 685 (2019) [8] S. Seki et al., Nature Materials 21, 181 (2022).