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Domain Wall Pinning by a Stray Field from NiFe on a Co/Ni Nanowire
R. Hiramatsu,T. Koyama,H. Hata,T. Ono,D. Chiba,S. Fukami,N. Ishiwata 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.63 No.3
We have investigated the influence of a stray field on a magnetic domain wall (DW). Thedepinning fields of a DW in a perpendicularly magnetized Co/Ni nanowire with partly-stackedNi81Fe19/SiO2 islands on it was measured. The depinning field for the wire with Ni81Fe19/SiO2was found to be higher than that for the wire without the stack, indicating that the stray field fromthe Ni81Fe19/SiO2 stack clearly served as an artificial pinning site for the DW. The magnetic forcemicroscopy observation evidenced that the DW was pinned near the Ni81Fe19 stack.
Toyoshima, R.,Hiramatsu, N.,Yoshida, M.,Amemiya, K.,Mase, K.,Mun, B.,Kondoh, H. Royal Society of Chemistry 2017 Chemical communications Vol.53 No.94
<P>Catalytic CO oxidation over Pd(111) and Pd70Au30(111) surfaces was investigated by in situ spectroscopic observations to understand the alloying effect. The reaction behaviour on Pd70Au30(111) is greatly different from that on Pd(111). Pd monomer and dimer ensembles can act as active centers, whereas triangular-shaped trimers and larger ensembles are inactive.</P>