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Localized Texture Formation and its Detection in Polycrystalline Thin Films of Gold

Published online by Cambridge University Press:  15 February 2011

Karen E. Harris  and
Alexander H. King
Karen E. Harris
Affiliation:
Department of Materials Science & Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794–2275.
Alexander H. King
Affiliation:
Department of Materials Science & Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794–2275.
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Abstract

We have developed a technique for detecting microscopic variations in texture in thin film TEM specimens using conical dark field imaging. This technique has been used to identify texture variations in 25nm thick gold films which were deposited on rock salt and annealed at 150°C. After annealing, the films were Mostly (111) textured with one micrometer wide bands of contrast in which the grain remained randomly oriented. When the contrast due to the variation in texture was first observed, the films were columnar-structured and the grain sizes in both the textured and un-textured regions were uniform, with a mean equivalent diameter of 54nm; no abnormal grains were observed. After additional annealing, abnormal (111) oriented grains appeared in some untextured regions of the film. The evolution of texture during grain growth and the influence of substrate morphology on texture formation will be discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 317: Symposium B – Mechanisms of Thin Film Evolution , 1993 , 425
Copyright
Copyright © Materials Research Society 1994

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References

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