Laser-Irradiation Induced a-Axis Orientation in c-Axis-Oriented YBa_2Cu_3O_x Films Prepared by Pulsed Laser Ablation

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概要

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• Superconducting YBa_2Cu_3O_x films on MgO(100) substrates were prepared by pulsed laser ablation with pulsed laser irradiation on the growing film surface. The irradiation effects on the crystal structure were studied for various substrate temperatures and irradiation fluences. These experiments revealed that a poorly crystallized film was successfully converted to a well-crystallized film with a-axis orientation after irradiation at a low substrate temperature. At a high substrate temperature, the a-axis-oriented crystallites were introduced into c-axis-oriented films upon irradiation, without degradation of the crystallinity, suggesting the possibility that these crystallites play the role of pinning centers in high-T_c, superconducting films.

• 社団法人応用物理学会の論文
• 1994-01-15

著者

• MINAMIKAWA Toshiharu

  Industrial Research Institute of Ishikawa (IRII)

• MORIMOTO Akiharu

  Department of Electrical and Computer Engineering, Faculty of Engineering, Kanazawa University

• SHIMIZU Tatsuo

  Department of Electrical and Computer Engineering, Faculty of Engineering, Kanazawa University

• MINAMIKAWA Toshiharu

  Department of Electrical and Computer Engineering, Faculry of Engineering, Kanazawa University

• SUZUKI Tenmin

  Department of Electrical and Computer Engineering, Faculry of Engineering, Kanazawa University

• SEGAWA Kazuhito

  Industrial Research Institute of Ishikawa

• Shimizu T

  Chiba Univ. Chiba Jpn

• Miura T

  Environmental Health Sciences Division National Lnstitute For Environmental Studies:(present Address

• Segawa K

  Osaka Electro‐communication Univ. Osaka Jpn

• Moto Akihiro

  The Authors Are With The Research Center For Superconductor Photonics Osaka University

• Shimizu Tatsuo

  Department Of Applied Physics University Of Tokyo

• Morimoto Akiharu

  Department of Electrical and Computer Engineering, Faculty of Engineering,

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