ON THE ROLE OF AG IN ENHANCEMENT OF J(C) IN YBA2CU3O7-DELTA THIN-FILMS

被引：18
|
作者：
MISRA, DS
JOHN, B
PINTO, R
MOMBASAWALA, LS
PALMER, SB
机构：
[1] TATA INST FUNDAMENTAL RES,BOMBAY 400005,MAHARASHTRA,INDIA
[2] INDIAN INST TECHNOL,RSIC,BOMBAY 400076,MAHARASHTRA,INDIA
[3] UNIV WARWICK,DEPT PHYS,COVENTRY CV4 7AL,W MIDLANDS,ENGLAND
来源：
PHYSICA C | 1995年 / 248卷 / 3-4期
关键词：
D O I：
10.1016/0921-4534(95)00257-X
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The role of Ag in the enhancement of J(c) in YBa2Cu3O7-delta (YBCO) thin films is investigated. Studies show that the concentration of Ag in laser-ablated films made from YBCO targets containing 1-20 wt.% Ag, is less than 0.1%. J(c) has been found to improve with Ag doping by a factor of 8 in the films which were prepared from targets containing 5 wt.% Ag. A theoretical model based on the reduction in the resistive grain-boundary size is proposed to explain the observed enhancement of J(c).
引用
收藏
页码：276 / 280
页数：5
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