中国物理B ›› 1996, Vol. 5 ›› Issue (3): 225-230.doi: 10.1088/1004-423X/5/3/010

• • 上一篇    

PREPARATION OF a-AXIS ORIENTED YBa2Cu3Ox THIN FILMS

聂家财, 陈烈, 杨涛, 郭丽萍, 吴培钧, 刘贵荣, 李林, 赵忠贤   

  1. National Laboratory for Superconductivity, Institute of Physics, Academia Sinica, Beijing 100080, China
  • 收稿日期:1995-04-27 出版日期:1996-03-20 发布日期:1996-03-20
  • 基金资助:
    Project supported by the National Center for Research and Development for Superconductivity of China.

PREPARATION OF a-AXIS ORIENTED YBa2Cu3Ox THIN FILMS

NIE JIA-CAI (聂家财), CHEN LIE (陈烈), YANG TAO (杨涛), GUO LI-PING (郭丽萍), WU PEI-JUN (吴培钧), LIU GUI-RONG (刘贵荣), LI LIN (李林), ZHAO ZHONG-XIAN (赵忠贤)   

  1. National Laboratory for Superconductivity, Institute of Physics, Academia Sinica, Beijing 100080, China
  • Received:1995-04-27 Online:1996-03-20 Published:1996-03-20
  • Supported by:
    Project supported by the National Center for Research and Development for Superconductivity of China.

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摘要： The a-axis oriented YBa2Cu3Ox(YBCO) thin films could be grown on (100) SrTiO3(STO) substrates with STO buffer layers by dc and rf magnetron sputtering either by low-ering the deposition temperature, or by using a self-template technique. For the latter, the resistivity of the thin film at 290K along the substrate [001] direction is about four times larger than that in the [010] direction. The zero resistance temperatures Tc0 are 89 K in both directions. So high quality a-axis oriented YBCO thin films can be prepared by the self-template technique. Also the Tc0 increase monotonously with the reduction of the thickness of the YBCO seed layer.

Abstract: The a-axis oriented YBa2Cu3Ox(YBCO) thin films could be grown on (100) SrTiO3(STO) substrates with STO buffer layers by dc and rf magnetron sputtering either by low-ering the deposition temperature, or by using a self-template technique. For the latter, the resistivity of the thin film at 290K along the substrate [001] direction is about four times larger than that in the [010] direction. The zero resistance temperatures Tc0 are 89 K in both directions. So high quality a-axis oriented YBCO thin films can be prepared by the self-template technique. Also the Tc0 increase monotonously with the reduction of the thickness of the YBCO seed layer.

中图分类号: 

  • 74.78.Bz
68.55.A- (Nucleation and growth) 81.15.Cd (Deposition by sputtering) 68.37.Lp (Transmission electron microscopy (TEM))