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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 ...

ELECTRON MICROSCOPY OF MGB2 THIN FILM ON YSZ-BUFFERED HASTELLOY

SOSIATI, HARINI; HATA, SATOSHI; KUWANO, NORIYUKI; TOMOKIYO, YOSHITSUGU; MATSUMOTO, AKIYOSHI; FUKUTOMI, MASAO; KITAGUCHI, HITOSHI; KOMORI, KAZUNORI; KUMAKURA, HIROAKI (Elsevier, 2004-06-11)

In order to understand the relationship between the microstructures and superconducting properties of MgB2 films, analytical TEM observations have been carried out. The films were fabricated by a KrF excimer laser deposition ...

TRANSMISSION ELECTRON MICROSCOPY ANALYSIS OF C4H4S-doped MgB2 TAPES

YUZURIHA, N; SOSIATI, HARINI; HATA, SATOSHI; KUWANO, NORIYUKI; YAMADA, H; UCHIYAMA, N; MATSUMOTO, AKIYOSHI; KITAGUCHI, HITOSHI; KUMAKURA, HIROAKI (IOP, 2008)

It has been reported that doping with aromatic hydrocarbons in an in situ powder-intube fabrication process of MgB2 tapes is effective for increasing the critical current density (Jc) under magnetic fields. In this study, ...

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 ...