Superconductivity of FeSe0.5Te0.5 Thin Films Grown by Pulsed Laser Deposition
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概要
- 論文の詳細を見る
FeSe0.5Te0.5 thin films with a PbO-type structure are successfully grown on MgO(100) and LaSrAlO4(001) substrates from FeSe0.5Te0.5 or FeSe0.5Te0.75 polycrystalline targets by pulsed laser deposition. The film deposited on the MgO substrate (film thickness: ${\sim}55$ nm) shows superconductivity at 10.6 K (onset) and 9.2 K (zero resistivity). On the other hand, the film deposited on the LaSrAlO4 substrate (film thickness: ${\sim}250$ nm) exhibits superconductivity at 5.4 K (onset) and 2.7 K (zero resistivity). This suggests the strong effect of substrate materials and/or the $c$-axis length on the superconducting properties of FeSe0.5Te0.5 thin films.
- 2010-02-25
著者
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Imai Yoshinori
Department Of Basic Science The University Of Tokyo
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Atsutaka Maeda
Department Of Applied Physics The University Of Tokyo
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Tanaka Ryo
Department Of Anesthesiology Kitasato University School Of Medicine
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Akiike Takanori
Department Of Basic Science The University Of Tokyo
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Ichiro Tsukada
Central Research Institute of Electric Power Industry, 2-6-1 Nagasaka, Yokosuka, Kanagawa 240-0196, Japan
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Masafumi Hanawa
Central Research Institute of Electric Power Industry, 2-6-1 Nagasaka, Yokosuka, Kanagawa 240-0196, Japan
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Ryo Tanaka
Department of Basic Science, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
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Takanori Akiike
Department of Basic Science, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
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Atsutaka Maeda
Department of Basic Science, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
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