Epitaxy of Pt thin films on (001) MgO. 1: Interface energetics and misfit accommodation

Journal Article · Sat Feb 01 04:00:00 UTC 1997 · Acta Materialia

DOI:https://doi.org/10.1016/S1359-6454(96)00182-6· OSTI ID:455277

McIntyre, P C; Maggiore, C J; Nastasi, M ^[1]

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1. Los Alamos National Lab., NM (United States). Materials Science and Technology Div.

Theoretical and experimental results on film/substrate interface energetics and misfit accommodation in Pt thin films on (001) MgO are reported. Two epitaxial orientations were observed in Pt films deposited on to (001) MgO substrates by electron beam evaporation: [110](001)Pt{parallel}[110](001) MgO and [110](111)Pt{parallel}[110](001) MgO. O-lattice calculations were used to predict film/substrate interface structures and relative interfacial energies for these two epitaxial Pt film orientations. The interfacial misfit dislocation structure was characterized by weak beam transmission electron microscopy. Good agreement was found among the calculated relative interface energies, reports in the literature, and the present experimental data.

• OSTI ID: 455277
• Journal Information: Acta Materialia, Journal Name: Acta Materialia Journal Issue: 2 Vol. 45; ISSN 1359-6454; ISSN ACMAFD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ELECTRON BEAMS
EPITAXY
EXPERIMENTAL DATA
INTERFACES
MAGNESIUM OXIDES
MICROSTRUCTURE
ORIENTATION
PLATINUM
THIN FILMS