Preparation of a High T_c Superconductor by Oxidization of an Amorphous La_<1.8>Sr_<0.2>Cu Alloy Ribbon in Air

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概要

• 論文の詳細を見る

• A ductile La_<1.8>Sr_<0.2>Cu amorphous alloy with a long ribbon shape was prepared by melt spinning. Oxidization of the amorphous alloy ribbon at 1173 K for 1.2 ks in air results in formation of a tetragonal (La_<1.8>Sr_<0.2>Cu)_xO_y, oxide. Furthermore, the oxide ribbon was found to exhibit high T_c superconductivity with onset at 36 K, midpoint at 22 K and zero resistance at 9 K. It is therefore concluded that the new process consisting of the preparation of an amorphous alloy ribbon with good ductility, followed by the high temperature oxidization in air is useful for production of a superconducting oxide tape with high T_c.

• 社団法人応用物理学会の論文
• 1987-04-20

著者

• Matsuzaki K

  Institute For Materials Research Tohoku University

• MASUMOTO Tsuyoshi

  The Research Institute of Electrical and Magnetic Materials

• Kimura Hisamichi

  The Research Institute For Iron Steel And Other Metals

• Inoue Akihisa

  The Research Institute For Iron Steel And Other Metals

• Moroishi K

  Hoya Corp. Tokyo Jpn

• MATSUZAKI Kunio

  The Research Institute for Iron,Steel and Other Metals Tohoku University

• Masumoto Tsuyoshi

  The Research Development Corporation Of Japan:the Research Institute For Iron Steel And Other Metals

• MOROISHI Keiji

  The Research Institute for Iron, Steel and Other Metals, Tohoku University

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