Ion beam analysis of composition and impurities in YBa2Cu3O7-δ and Bi2Sr2Ca2Cu3O10-δ superconductor thin films

被引：4

作者：

Matsunami, N

Endo, K

Sakai, H

Takai, Y

机构：

[1] Energy Engineering and Science, School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Furo-cho

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2000年 / 161卷

关键词：

high T-c superconducting thin film; oxygen composition; H and C impurities; ERD; NRA;

D O I：

10.1016/S0168-583X(99)00820-4

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We have measured the hydrogen impurity in YBa2Cu3O7-delta (YBCO) films by 2.5 MeV He elastic recoil detection (ERD). The carbon was also detected in YBCO and Bi2Sr2Ca2Cu3O10-delta (Bi-2223) films, using(12)C(He-3.p)N-14 nuclear reaction analysis (NRA). For YBCO films, a trend of T-c degradation with increasing H concentration was found similarly to the case of Bi-2223 films. No dear relation was found between the carbon concentration and T-c, in both YBCO and Bi-2223 films. Composition, especially oxygen concentration, can be determined to an accuracy of 3%, by proton non-Rutherford scattering. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：595 / 599

页数：5

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