Orthorhombic-II Phase in Ba_2YCu_3O_<7-x> Crystals : Electrical Properties of Condensed Matter

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概要

• 論文の詳細を見る

• The structure in a wide oxygen-deficiency range of Ba_2YCu_3O_<7-x> crystal (0.15<X<0.78) prepared by a quenching method was examined by electron optical methods. The crystal structure modification for the ortho-II Phase (T_c〜60 K, X〜0.5),whose shorter α-axis is doubled, is considered to be an ordered oxygen-vacancy arrangement caused by removing oxygen atoms from alternating oxygen atoms and their vacancy arrays along the [010]direction on Cu(1)-plane. The mechanism for the ortho-I →the ortho-II→the " incipient " tetragonal phase transformation is discussed in terms of oxygen-deficiency.

• 社団法人応用物理学会の論文
• 1988-07-20

著者

• Kubo Yoshimi

  Fundamental Res. Labs. Nec Corp.

• Iijima S

  Fundamental Research Laboratories Nec Corporation

• Iijima Sumio

  Fundamental Research Laboratories Nec Corporation

• ICHIHASHI Toshinari

  NEC Fundamental Research Laboratories

• Tabuchi J

  Fundamental Research Laboratories Nec Corporation

• Tabuchi Junji

  Fundamental Research Laboratories Nec Corporation

• Ichihashi T

  Nec Fundamental Research Laboratories

• Ichihashi Toshinari

  Fundamental Research Laboratories Nec Corporation

• Ichihashi Toshinari

  Fundamental and Environmental Research Laboratories, NEC Corporation, 34 Miyukigaoka, Tsukuba, Ibaraki 305-8501, Japan

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