Fabrication of thick YBa2Cu3O7-x films on optimized SrTiO3 buffered-MgO single crystals

P. Mele, K. Matsumoto, T. Horide, A. Ichinose, M. Mukaida, Y. Yoshida, S. Horii

研究成果: Article

3 引用 (Scopus)

抜粋

In this work, we studied the optimum deposition conditions for SrTiO 3 (STO) buffers deposited on MgO single crystals substrates by PLD method. We found that 120 nm thick STO films, deposited at 730 °C, present the smoothest surface and a minimum FWMH of the (002) reflection. High quality, smooth and free-crack YBa2Cu3O7-x (YBCO) thick superconducting films have then been fabricated using a deposition temperature of 800 °C on STO-buffered MgO substrates. A 373 nm thick YBCO/STO/MgO film can carry current densities Jc (77 K, 0 T) of 1.4 MA/cm2 and Jc (77 K, 5 T) of 0.14 MA/cm2. The Jc in high field overcomes the current transported in same experimental conditions by 180 nm thick YBCO film grown on Y2O3-decorated STO single crystal. For 1350 nm thick YBCO/STO/MgO film the Jc (77 K, 0 T) is about 0.8 MA/cm2 and Jc (77 K, 5 T) is 0.09 MA/cm 2.

元の言語English
ページ(範囲)3713-3716
ページ数4
ジャーナルIEEE Transactions on Applied Superconductivity
17
発行部数2
DOI
出版物ステータスPublished - 2007 6 1
外部発表Yes

ASJC Scopus subject areas

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

フィンガープリント Fabrication of thick YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-x</sub> films on optimized SrTiO<sub>3</sub> buffered-MgO single crystals' 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。

  • これを引用