Orientation selection in thin platinum films on (001) MgO
作者:
P. C. McIntyre,
C. J. Maggiore,
M. Nastasi,
期刊:
Journal of Applied Physics
(AIP Available online 1995)
卷期:
Volume 77,
issue 12
页码: 6201-6204
ISSN:0021-8979
年代: 1995
DOI:10.1063/1.359147
出版商: AIP
数据来源: AIP
摘要:
Orientation selection in platinum films of ∼20 nm thickness deposited onto (001) MgO substrates bye‐beam evaporation was investigated through ion beam channeling and x‐ray diffraction. A mixture of crystallites having (111) and (001) orientation was observed in Pt films deposited over a range of substrate temperatures from 25 to 700 °C, with the (111) orientation dominant at low temperatures. The (111) orientation was present in these evaporated films at significantly higher substrate temperatures than reported for Pt films deposited by sputtering or pulsed laser deposition. Both orientations had strongly preferred in‐plane orientations: [110] Pt//[110] MgO for the (001)‐oriented crystallites and [110]Pt//[110] MgO for the (111). The orientation selection process was rationalized based on the expected relative interfacial energies for these two orientations. ©1995 American Institute of Physics.
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