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Fabrication of YBa2Cu37/Ag Sputtered Multilayers

Published online by Cambridge University Press:  26 February 2011

J. Colino  and
J. L. Vicent
J. Colino
Affiliation:
Instituto de Ciencia de Materiales (CSIC), Serrano 144, 28006 Madrid.
J. L. Vicent
Affiliation:
Dpto. Física de Materiales, Facultad Físicas, Universidad Complutense, 28040 Madrid, and I.C.M. (CSIC) Serrano 144, 28006 Madrid (SPAIN).
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Abstract

Thin films of YBa2Cu3O7/Ag multilayered structures have been grown by dc magnetron sputtering on MgO(lOO) substrates. The samples have been characterized by X-ray diffraction, scanning tunneling microscopy and resistivity measurements. Multilayers with YBCO layer thickness above 40nm show superconducting transitions and zero resistances higher than 70K. These layers show c-axis growth perpendicular to the substrate and the silver layers have preferential (111) orientation normal to the substrate too. Finally STM images reveal screw dislocation spirals at the YBCO layer surface even when the superconducting layer is grown on silver (111) underlayers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 275: Symposium S – Layered Superconductors: Fabrication, Properties and Applications , 1992 , 431
Copyright
Copyright © Materials Research Society 1992

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References

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