低温工学
Online ISSN : 1880-0408
Print ISSN : 0389-2441
ISSN-L : 0389-2441
研究論文
プラスチックフィルム上への高品質超伝導MgB2薄膜の作製
加藤 孝弘矢田 真治安達 悠一山田 容士久保 衆伍山田 裕松下 明行
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2005 年 40 巻 11 号 p. 487-492

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The preparation of MgB2 thin films, which can grow with fairly good superconducting properties at temperatures below 300°C, was examined on heat-resistant plastic substrates such as polyimide film, making use of this low-temperature growth characteristic. To obtain high-quality MgB2 films even at low temperatures, the idea of epitaxial growth is essential, and a metallic buffer with a hexagonal crystal structure of the same lattice parameter as that of MgB2 was previously proved to be effective for this purpose. Here, we have examined a double-layered metallic buffer Ti/Ag for growing MgB2 with good crystallinity. We then clarified that this buffer, each layer being 50 nm-thick and fabricated at an ambient temperature, is useful for polyimide film substrates. Preliminary results on the deformation properties of MgB2/polyimide films are also described.

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© 2005 公益社団法人 低温工学・超電導学会 (旧 社団法人 低温工学協会)
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