Crystal Structure and T_c of YBa_2Cu_3O_y (y>7)
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概要
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At a high oxygen pressure of 6 GPa, YBa_2Cu_3O_y was heat-treated. With an increasing supply of oxygen, the crystal structure of the processed specimens gradually changed from orthorhombic (y=7) to tetragonal (y=7.7), whereas the onset of superconducting transition temperature consistently remained at 92 K for all of the specimens. The distribution of charges among the copper-oxygen chains and the CuO_2 sheets in YBa_2Cu_3O_y (y>7) are discussed.
- 社団法人応用物理学会の論文
- 1991-08-01
著者
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Okai Bin
National Institute For Research In Inorganic Materials
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Okai Bin
Faculty Of General Education Kogakuin University
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Okai Bin
Faculty Of General Education Kogakuin University:national Institute For Research In Inorganic Materi
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OHTA Masatsune
National Institute for Research in Inorganic Materials
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