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).

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页码：276 / 280

页数：5

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