Real space observation of current-induced magnetic domain wall displacement in Co/Ni nano-wire by photoemission electron microscopy

• Published in: Journal of physics. Condensed matter Vol. 23; no. 38; pp. 382202 - 3
• Main Authors: Ohshima, N, Koyama, T, Tanigawa, H, Kotsugi, M, Ohkouchi, T, Chiba, D, Kinoshita, T, Ono, T
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 28.09.2011; Institute of Physics
• Subjects: Condensed matter; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Displacement; Electron microscopy; Exact sciences and technology; Magnetic domains; Magnetic properties and materials; Nanostructure; Nickel; Photoemission; Physics; Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source x-ray scattering, etc.); Walls; Photoelectron microscopy; Magnetic domains; Domain wall motion; Nickel; Nanowires; Velocity measurement; Perpendicular magnetic anisotropy; Cobalt
• ISSN: 0953-8984; 1361-648X
• DOI: 10.1088/0953-8984/23/38/382202

Current-induced magnetic domain wall (DW) displacement in a Co/Ni nano-wire with perpendicular magnetic anisotropy was investigated in real space by photoemission electron microscopy (PEEM) for the first time. DW velocity determined from the PEEM observation was 40 m s(-1) for the current density of 2.5 × 10(12) A m(-2), which was consistent with the result obtained by the electrical measurement used in our previous reports.