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Threading dislocation generation in epitaxial (Ba,Sr)TiO3 films grown on (001) LaAlO3 by pulsed laser deposition

Publication Type

Journal Article

Authors

Misirlioglu, I.B, A.L Vasiliev, M Aindow, S.P Alpay, Ramamoorthy Ramesh

DOI

10.1063/1.1664035

Abstract

The epitaxial growth of (Ba,Sr)TiO3 (BST) films on (001) LaAlO3 by pulsed laser deposition and dislocation structures of the films were investigated. The BST films were deposited by PLD from a sintered BST target using growth conditions that results in high quality epitaxial films. The result show that the treading dislocations are not generated as the result of half-loop climb from the deposit surface. It was found that the dislocation were formed when misfit dislocations are forced away from the interface during island coalescence.

Journal

Applied Physics Letters

Volume

Year of Publication

2004

ISSN

00036951

Notes

cited By 31

Research Areas

Ramesh Lab