中国物理B ›› 1997, Vol. 6 ›› Issue (7): 526-530.doi: 10.1088/1004-423X/6/7/008

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FRINGE EFFECT ON CRITICAL CURRENT OF A GOLD FILM PERCOLATION SYSTEM

曾跃武1, 冯春木1, 葛洪良2, 叶高翔2, 张其瑞2   

  1. (1)Central Laboratory, Hangzhou University, Hangzhou 310028, China; (2)Department of Physics, Zhejiang University, Hangzhou 310027, China
  • 收稿日期:1996-08-06 修回日期:1997-03-03 出版日期:1997-07-20 发布日期:1997-07-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China and by the Natural Science Foundation of Zhejiang Province of China.

FRINGE EFFECT ON CRITICAL CURRENT OF A GOLD FILM PERCOLATION SYSTEM

GE HONG-LIANG (葛洪良)a, ZENG YUE-WU (曾跃武)b, FENG CHUN-MU (冯春木)b, YE GAO-XIANG (叶高翔)a, ZHANG QI-RUI (张其瑞)a   

  1. a Department of Physics, Zhejiang University, Hangzhou 310027, China; b Central Laboratory, Hangzhou University, Hangzhou 310028, China
  • Received:1996-08-06 Revised:1997-03-03 Online:1997-07-20 Published:1997-07-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China and by the Natural Science Foundation of Zhejiang Province of China.

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摘要： In this paper, the fringe effect on critical current has been studied systematically by measuring the electric transport characteristics of a Au-film system with diffuse fringe structure. It is found experimentally that, when the fringe effect becomes obvious, the film will exhibit strange I-R charac-teristics, in which exist a balance current and a critical current. We find that the critical exponents are related lo the diffuse fringe structure of the Films. The detailed analysis shows that the character- biles result from the thermionic-activating conductive effect in the diffuse fringe film sytem.

Abstract: In this paper, the fringe effect on critical current has been studied systematically by measuring the electric transport characteristics of a Au-film system with diffuse fringe structure. It is found experimentally that, when the fringe effect becomes obvious, the film will exhibit strange I-R charac-teristics, in which exist a balance current and a critical current. We find that the critical exponents are related lo the diffuse fringe structure of the Films. The detailed analysis shows that the character- biles result from the thermionic-activating conductive effect in the diffuse fringe film sytem.

中图分类号:  (Metal and metallic alloys)

  • 73.61.At
64.60.F- (Equilibrium properties near critical points, critical exponents)