Flux Pinning Mechanism of High-T_c Y-Ba-Cu-O Superconductor Containing Artificial Pinning Centers Y_2BaCuO_5

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概要

• 論文の詳細を見る

• Magnetic field and temperature dependences of magnetic torque and magnetic relaxation were investigated on Y-Ba-Cu-O superconducting systems containing Y_2BaCuO_5 artificial particulate precipitates. Two different types of pinning forces were found to act on fluxoids. One is the intrinsic pinning force due to a layered structure of Cu-O planes and the other is the extrinsic pinning force due to Y_2BaCuO_5 precipitates. The intrinsic pinning force is effective when the applied magnetic field is lying within an angle Δθ out of the Cu-O planes. The pinning potential obtained from the magnetic relaxation measurements is expressed by the form of log (J_C/j )where j is the shielding current density. The pinning mechanism is discussed in terms of the planar pinning at the precipitates and the transformation of fluxoid lines from stepwise to linear.

• 社団法人日本物理学会の論文
• 1993-03-15

著者

• TENYA Kenichi

  Department of Physics,Graduate School of Science,Hokkaido University

• Ishikawa Y

  Faculty Of Health Sciences Kobe University School Of Medicine

• Tenya Kenichi

  Devision Of Physics Hokkaido University

• Tenya Kenichi

  Department Of Physics Faculty Of Science And Technology Keio University

• TENYA Kenichi

  Division of Physics, Graduate School of Science, Hokkaido University

• Miyajima Hideki

  Department Of Physics Faculty Of Science And Technology Keio University

• KOHAYASHI Shuichi

  Central Research Laboratory, Dowa Mining Co., Ltd.

• YOSHIZAWA Shuji

  Central Research Laboratory, Dowa Mining Co., Ltd.

• Yoshizawa S

  Dowa Mining Co. Ltd. Tokyo

• Yoshizawa Shuji

  Department Of Chemistry Meisei University

• Yoshizawa Shuji

  Central Research Laboratory Dowa Mining Co. Ltd.

• Otani Yoshichika

  Department of Physics, Faculty of Science and Technology, Keio University

• Ishikawa Yuuichi

  Central Research Laboratory, Dowa Mining Co. Ltd.

• Kohayashi Shuichi

  Central Research Laboratory Dowa Mining Co. Ltd.

• Kohayashi S

  Dowa Mining Co. Ltd. Tokyo

• Ishikawa Y

  Univ. Ryukyus Okinawa Jpn

• Otani Y

  Tohoku Univ. Sendai

• Otani Yoshichika

  Department Of Physics Faculty Of Science And Technology Keio University

• Tenya Kenichi

  Graduate School of Science, Hokkaido University

• Otani YoshiChika

  Department of Material Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, People's Republic of China

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