SUPERCONDUCTING Y1BA2CU3O7-X/ND1.85CE0.15CUO4-Y BILAYER THIN-FILMS

被引：28

作者：

MAO, SN ^{[1
]}

XI, XX ^{[1
]}

LI, Q ^{[1
]}

TAKEUCHI, I ^{[1
]}

BHATTACHARYA, S ^{[1
]}

KWON, C ^{[1
]}

DOUGHTY, C ^{[1
]}

WALKENHORST, A ^{[1
]}

VENKATESAN, T ^{[1
]}

WHAN, CB ^{[1
]}

PENG, JL ^{[1
]}

GREENE, RL ^{[1
]}

机构：

[1] UNIV MARYLAND,DEPT ELECT ENGN,COLL PK,MD 20742

来源：

APPLIED PHYSICS LETTERS | 1993年 / 62卷 / 19期

关键词：

D O I：

10.1063/1.109385

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Bilayers of Y1Ba2Cu3O7-x(YBCO)/Nd1.85Ce0.15CuO4-y(NCCO), in which both layers were superconducting, were fabricated in situ by pulsed laser deposition. Using N2O as the reactive gas, we were able to meet the conflicting processing requirements, oxygenation for YBCO, and reduction for NCCO, in the same sample with a specific cooling procedure. The bilayer thin films were c-axis oriented with a transition temperature, T(co), of 88.5 K for YBCO and 18.5 K for NCCO. Supercurrent was observed across the interface of the YBCO and NCCO superconducting layers, indicating the phase coherence between these superconductors.

引用

页码：2425 / 2427

页数：3

共 10 条

[1]

GINSBERG DM, 1992, PHYSICAL PROPERTIES, V3, pCH4

[2] CRITICAL CURRENT-DENSITY OF STRAINED MULTILAYER THIN-FILMS OF ND1.83CE0.17CUOX YBA2CU3O7-DELTA [J].