Crystal distortion associated with ortho-tetra transition of REBa 2Cu3Ox films

M. Mukaida, M. Miura, A. Ichinose, S. Horii, K. Matsumoto, Y. Yoshida, K. Koike, Y. Takahashi, A. Saito, S. Ohshima

研究成果: Contribution to journalConference article


Microstructure deformation has been investigated for EuBa 2Cu3Ox films associated with orthorhombic-tetragonal transition during cooling in an oxygen atmosphere. EuBa2Cu3Ox films have been grown by a pulsed laser deposition technique under 1000 mTorr oxygen pressure and 800 °C substrate temperature. After the growth, the films are cooled to 400 °C and annealed in one atom oxygen pressure for 0-110 h. The preferred orientation of the films is characterized by X-ray diffraction and φ-scan X-ray diffraction. Microstructures and lattice images of the EuBa2Cu 3Ox films are observed by a transmission electron microscope. All of the obtained EuBa2Cu3Ox films are c-axis oriented. The φ-scan X-ray diffraction revealed that films without any 500 °C annealing have a tetragonal structure. However, more than 3 h annealed films are partly orthorhombic from the peak separation in the φ-scan. The angle between the two peaks is about 0.8°. We estimate the a-axis length/b-axis length ratio (orthorhombicity) from the angle between the separated peaks to be 0.866°. It agrees with the a-axis length/b-axis length ratio of well oxidized EuBa2Cu3Ox bulk materials.

ジャーナルPhysica C: Superconductivity and its applications
出版物ステータス出版済み - 10 6 2005
イベントProceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity -
継続期間: 11 23 200411 25 2004

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

フィンガープリント Crystal distortion associated with ortho-tetra transition of REBa <sub>2</sub>Cu<sub>3</sub>O<sub>x</sub> films' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

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    Mukaida, M., Miura, M., Ichinose, A., Horii, S., Matsumoto, K., Yoshida, Y., Koike, K., Takahashi, Y., Saito, A., & Ohshima, S. (2005). Crystal distortion associated with ortho-tetra transition of REBa 2Cu3Ox films. Physica C: Superconductivity and its applications, 426-431(II), 1010-1014.