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Proceedings Paper

Growth and transport properties of multilayer superconducting films of Nd1.83Ce0.17CuOx/YBa2Cu3O7-delta
Author(s): Arunava Gupta; R. Gross; Eva Olsson; Armin Segmueller; Gabriel Koren
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Paper Abstract

Strained multilayer thin films of YBa2Cu3O76/Nd1.83Ceo.i7CuO have been prepared by laser ablation deposition. For individual layers below a critical layer thickness of about 250A, coherency strain compresses the Nd1.83Ceo.17CuO lattice and expands the YBa2Cu3O75 lattice. The orthorhombic distortion in the YBa2Cu3O75 layers is also removed. Depending on their oxygen content, either the YBa2Cu3O75, or the Nd1.83Ce0.17CuO layers are superconducting in these multilayers. The strain-induced structural modification has a significant influence on the superconducting transition temperature and critical current density of the YBa2Cu3O75 layers. Zero field critical current densities as high as 1.lxlO7A/cm2 at 77K have been measured for the YBa2Cu3O7 -, layers.

Paper Details

Date Published: 1 October 1990
PDF: 11 pages
Proc. SPIE 1287, High Tc Superconductivity: Thin Films and Applications, (1 October 1990); doi: 10.1117/12.20880
Show Author Affiliations
Arunava Gupta, IBM/Thomas J. Watson Research (United States)
R. Gross, IBM/Thomas J. Watson Research (United States)
Eva Olsson, IBM/Thomas J. Watson Research (Sweden)
Armin Segmueller, IBM/Thomas J. Watson Research (United States)
Gabriel Koren, IBM/Thomas J. Watson Research (France)

Published in SPIE Proceedings Vol. 1287:
High Tc Superconductivity: Thin Films and Applications
Cheng-Chung John Chi; R. Bruce van Dover, Editor(s)

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