Neutron diffraction study of Nd-substitu
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T. Mochiku; T. Wuernisha; Y. Hata; A. Hoshikawa; H. Fujii; H. Yasuoka; K. Hirata
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Article
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2008
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Elsevier Science
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English
⚖ 330 KB
FeSr 2 YCu 2 O 6+d with tetragonal Ba 2 YCu 3 O 6+d -type structure exhibits superconductivity around 60 K, only when it is annealed in reduced atmosphere and subsequently in oxidized atmosphere. However, FeSr 2 NdCu 2 O 6+d with the substitution of lanthanoid with large ionic radius for Y do not ex