Abstract
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//[110](001) MgO and [110](111)Pt//[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.
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