1. Pulsed laser deposition of LaNiO3 and YBa2Cu3O7-δ/LaNiO3 on SrTiO3 buffered (100) MgO
- Author
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Sun, Guo-Zhu, Wu, Pei-Heng, Feng, Yan, Ji, Zheng-Ming, Yang, Sen-Zu, Wang, Mu, Xu, Wei-Wei, and Kang, Lin
- Subjects
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PULSED laser deposition , *PARTICLES (Nuclear physics) , *SUPERCONDUCTORS , *OPTICAL diffraction - Abstract
Multilayer structure YBa2Cu3O7-δ (YBCO)/LaNiO3 (LNO)/SrTiO3 (STO)/MgO has been carefully studied in the hope that it can be used for applications such as quasiparticle injection or Josephson junction fabrication. Deposited by pulsed laser, LNO on STO-buffered (100) MgO has low resistivity, good metallic characteristics, and very smooth surface (with a mean-square-root roughness of less than 3 nm). After the deposition of LNO, YBCO film can be grown in situ on it, showing good superconducting properties with a critical temperature above 81 K and a narrow transition width below 1.5 K. X-ray diffraction analyses have indicated that all the deposited films are highly c-axis-oriented. [Copyright &y& Elsevier]
- Published
- 2005
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