物理化学学报 >> 1988, Vol. 4 >> Issue (06): 561-565.doi: 10.3866/PKU.WHXB19880601

通讯    下一篇

用俄歇电子能谱分析Y-Ba-Cu-O超导薄膜与衬底的界面互作用

郑彦; 章纯思; 任琮欣; 陈建民; 陈国梁; 杨洁; 金丽娜; 柳襄怀; 谢雷鸣; 邹世昌   

  1. 中国科学院上海冶金研究所离子束开放研究实验室
  • 收稿日期:1988-04-27 修回日期:1988-08-22 发布日期:1988-12-15
  • 通讯作者: 郑彦

INVESTIGATION OF INTERACTION BETWEEN SUBSTRATE AND YBa2Cu3O7-δ SUPERCONDUCTING THIN FILM BY AES

Zheng Yan; Zhang Chunsi; Ren Congxin; Chen Jianming; Chen Guoliang; Yang Jie; Jin Lina; Liu Xianghuai; Xie Leiming; Zou Shichang   

  1. Ion Beam Laboratory; Shanghai Institute of Metallurgy; Academia Sinica
  • Received:1988-04-27 Revised:1988-08-22 Published:1988-12-15
  • Contact: Zheng Yan

Abstract: The interaction between superconducting thin film of YBa_2Cu_3O_(7_δ) and substrate Of YSZ (Yttric stabilized zirconia) was investigated by AES. It is found after annealing at 900 ℃ that Ba and Cu atoms in the film severely diffuse to and interact with the substrate, white Zr atoms of the substrate do to and with the film, moreover,the diffusion of Ba atoms is more rapid than that of Cu atoms. A thin Ag film deposited on the substrate as a buffer layer seperates the defects on the surface of substrate from the film to suppress the formation of the second phases at the substrate defects as nucleation centre and retard the diffusion of Ba and Cu atoms to the substrate, and lessen the segregation of Cu and CuO in the film.