SYNTHESIS AND CHARACTERIZATION OF NB/AL2O3 MULTILAYER SUPERCONDUCTORS

被引：10
|
作者：
KAMIGUCHI, Y
IKEBE, M
OBI, Y
FUJIMORI, H
机构：
[1] Institute for Materials Resarch, Tohoku University, Sendai
[2] Department of Electronic Engineering, Iwate University, Morioka
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 1991年 / 30卷 / 05期
关键词：
MULTILAYER; SUPERCONDUCTOR; SPUTTER; JOSEPHSON COUPLING; QUASI; 2; DIMENSIONAL; DIMENSIONAL CROSSOVER;
D O I：
10.1143/JJAP.30.945
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The metal/insulator multilayer superconductor, Nb/Al2O3, has been prepared by use of a dual sputtering technique. Sample characterization has been made by X-ray diffraction and electron transport measurements. The superconducting transition temperature T(c) and the upper critical fields parallel and perpendicular to the multilayer plane have been examined as a function of Nb and Al2O3 sublayer thickness. Anisotropy of the critical fields is analyzed on the basis of the Josephson tunneling model for a quasi-two-dimensional superconductor and the strength of the interlayer Josephson coupling through the Al2O3 sublayer is evaluated.
引用
收藏
页码：945 / 949
页数：5
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