Fabrication of Multilayered rm MgB 2 / rm Ni Thin Films and Their Flux Pinning Properties

• Published in: IEEE transactions on applied superconductivity Vol. 19; no. 3
• Main Authors: Tsukano, Y, Doi, T, Yamashita, H, Tanaka, A, Iwasaki, I, Hakuraku, Y, Kitaguchi, H, Takahashi, K-i, Sosiati, H, Hata, S, Ikeda, K-i, Nakashima, H
• Format: Journal Article
• Language: English
• Published: 01-01-2009
• Subjects: Borides; Magnesium compounds; Magnetic fields; Multilayers; Nickel; Scanning electron microscopy; Superconductivity; Thin films
• ISSN: 1051-8223
• DOI: 10.1109/TASC.2009.2018527

We prepared the multilayered MgB sub(2)/Ni thin films with the Ni layer spacings of 32, 23 and 16 nm. The MgB sub(2)/Ni multilayer nanostructure was confirmed to be obtained from the scanning transmission electron microscope observation. The clear enhancement of J sub(c) was observed in the multilayered MgB sub(2)/Ni thin film when the magnetic field was applied parallel to the film surface. Moreover, the peak position of F sub(p) - B curves shifted to higher magnetic field with decreasing the Ni layer spacing.