High-temperature superconductor edge-geometry SNS junctions with engineered normal-metal layers

被引：5

作者：

Jia, QX

Reagor, D

Kung, H

Hawley, M

Mombourquette, C

Foltyn, SR

Wu, XD

Peterson, DE

机构：

[1] LOS ALAMOS NATL LAB,ELECT MAT & DEVICE RES,LOS ALAMOS,NM 87545

[2] LOS ALAMOS NATL LAB,CTR MAT SCI,LOS ALAMOS,NM 87545

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1996年 / 9卷 / 11期

关键词：

D O I：

10.1088/0953-2048/9/11/010

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High-temperature superconductor Josephson junctions in an edge-geometry superconductor-normal-metal-superconductor (SNS) configuration were fabricated on LaAlO3 substrates. The normal metal was composed of an engineered multilayer Y1-xPrxBa2Cu3O7-delta with different Pr-doping concentrations (x = 0.1, 0.3, or 0.5). Scanning tunnelling microscopy analysis on Y1-xPrxBa2Cu3O7-delta thin films provided supporting evidence for the use of such an engineered multilayer as N barrier to fabricate edge-geometry SNS junctions. The improved S-N or N-S interface, as revealed by cross-sectional transmission electron microscopy, explains the negligible interface resistance of the junctions.

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页码：985 / 990

页数：6

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