LOW-TEMPERATURE FORMATION OF YBA2CU3O7-X SUPERCONDUCTING FILMS FROM MOLECULAR CU-BA-Y PRECURSORS

被引：19

作者：

RUPICH, MW

LIU, YP

IBECHEM, J

机构：

[1] EIC Laboratories Inc., Norwood

来源：

APPLIED PHYSICS LETTERS | 1992年 / 60卷 / 11期

关键词：

D O I：

10.1063/1.107298

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Highly oriented superconducting YBa2Cu3O7-x films were prepared on (100) LaAlO3 and (100) yttria-stabilized ZrO2 (YSZ) substrates by sequential thermolysis and oxidation of Cu-Ba-Y mu-oxo alkoxide precursor films at 730-degrees-C. The precursor films were deposited by standard spin-coating techniques. The electrical properties and surface morphology of the YBa2Cu3O7-x films are determined primarily by the thermolysis conditions. YBa2Cu3O7-x films processed at 730-degrees-C show metallic behavior in the normal state and sharp resistive superconducting transitions with T(c) (R = 0) at 89.5 K. Critical current densities of 2 X 10(5) A/cm2 at 77 K were obtained with YBa2Cu3O7-x films on YSZ substrates. X-ray diffraction analysis shows a preferential c-axis alignment normal to the substrate plane.

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页码：1384 / 1386

页数：3

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