High-Pressure Synthesis of Superconducting La_<1.7>Ca_<1.3>Cu_2O_y
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概要
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At a high pressure of 6 GPa, La_<1.7>Ca_<1.3>Cu_2O_y and La_<1.7>:Sr_<1.3>Cu_2O_y of the Sr_3Ti_2O_7 structure were synthesized. A supply of oxygen was necessary for the synthesis of La_<1.7>Ca_<1.3>Cu_2O_y, while La_<1.7>Sr_<1.3>Cu_2O_y became multiphased under high oxygen pressure. The compound La_<1.7>Ca_<1.3>Cu_2O_y was a superconductor with the onset temperature of 70 K. With further increase of oxygen for synthesis, La_<1.7>Ca_<1.3>Cu_2O_y changed structure, and the onset temperature became 75 K.
- 社団法人応用物理学会の論文
- 1991-02-01
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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