Browsing 04. LECTURERS ACADEMIC ACTIVITIES by Author "DOI, TOSHIYA"

Now showing items 1-4 of 4

    • FABRICATION OF MULTILAYERED MGB2/NI THIN FILMS AND THEIR FLUX PINNING PROPERTIES 

      TSUKANO, YUTAKA; DOI, TOSHIYA; YAMASHITA, HIROKI; TANAKA, AKIRA; IWASAKI, IKUMI; HAKURAKU, YOSHINORI; KITAGUCHI, HITOSHI; TAKAHASHI, KEN-ICHIRO; SOSIATI, HARINI; HATA, SATOSHI; IKEDA, KEN-ICHI; NAKASHIMA, HIDEHARU (IEEE, 2009)
      We prepared the multilayered MgB2/Ni thin films with the Ni layer spacings of 32, 23 and 16 nm. The multilayer nanostructure was confirmed to be obtained from the scanning transmission electron microscope observation. The ...

    • MgB fiLMS WITH VERY HIGH CRITICAL CURRENT DENSITIES DUE TO STRONG GRAIN BOUNDARY PINNING 

      KITAGUCHI, HITOSHI; MATSUMOTO, AKIYOSHI; KUMAKURA, HIROAKI; DOI, TOSHIYA; YAMAMOTO, HAJIME; SAITOH, KEISUKE; SOSIATI, HARINI; HATA, SATOSHI (American Institute of Physics, 2004-08-13)
      MgB2 superconductor has a great potential for applications because of its high Tc and Bc2, exceeding those of any Nb-base superconductors at any temperature. It is now important to understand its flux pinning so as to raise ...

    • PROPERTIES OF MGB FILMS WITH VERY HIGH TRANSPORT CRITICAL CURRENT DENSITIES 

      KITAGUCHI, HITOSHI; DOI, TOSHIYA; KOBAYASHI, YUKI; MATSUMOTO, AKIYOSHI; SOSIATI, HARINI; HATA, SATOSHI; FUKUTOMI, MASAO; KUMAKURA, HIROAKI (IEEE, 2005-06)
      Magnesium diboride, MgB2, thin films are fabricated through two different kinds of process. One is an in-situ process by using electron beam deposition and the other is an ex-situ process by using the combination of pulsed ...

    • RELATIONSHIP BETWEEN MICROSTRUCTURE AND JC PROPERTY IN MGB2/Α-AL2O3 FILM FABRICATED BY IN SITU ELECTRON BEAM EVAPORATION 

      SOSIATI, HARINI; HATA, SATOSHI; KUWANO, NORIYUKI; TOMOKIYO, YOSHITSUGU; KITAGUCHI, HITOSHI; DOI, TOSHIYA; YAMAMOTO, HAJIME; MATSUMOTO, AKIYOSHI; SAITOH, KEISUKE; KUMAKURA, HIROAKI (IOP, 2005-08-09)
      A transmission electron microscopy (TEM) study has been carried out on an MgB2/α-Al2O3 film that exhibits the typical property of critical current density (Jc) under magnetic fields. The MgB2 layer of 300 nm in thickness ...