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Examination of Particles and Outgrowths on the Surface of Epitaxial Yba2Cu3O7 Thin Films

Published online by Cambridge University Press:  15 February 2011

M. Grant Norton ,
Rand R. Biggers ,
I. Maartense ,
E. K. Moser  and
Jeff L. Brown
M. Grant Norton
Affiliation:
Mechanical and Materials Engineering, Washington State University, Pullman WA 99164
Rand R. Biggers
Affiliation:
US Air Force Wright Laboratory, WL/MLPO, Wright Patterson AFB, OH 45433
I. Maartense
Affiliation:
US Air Force Wright Laboratory, WL/MLPO, Wright Patterson AFB, OH 45433
E. K. Moser
Affiliation:
US Air Force Wright Laboratory, WL/MLPO, Wright Patterson AFB, OH 45433
Jeff L. Brown
Affiliation:
U S Air Force Wright Laboratory, WL/ELOT, Wright Patterson AFB, OH 45433
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Abstract

The surface morphology of Yba2Cu3O7 thin films formed on (001)-oriented LaAlO3 substrates by pulsed-laser deposition has been examined using electron and scanning probe microscopies. The observed surface features can be divided into two types: particles formed as a result of material (often molten) ejected from the target and outgrowths formed as a result of nucleation and growth processes on the substrate and/or the film surface. Where both types of surface feature occur on a particular film the outgrowths are always more numerous. The density of outgrowths is strongly related to the deposition parameters and, as a consequence, with the film growth mechanism.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 341: Symposium F – Epitaxial Oxide Thin Films and Heterostructures , 1994 , 183
Copyright
Copyright © Materials Research Society 1994

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