Strain dependence of dissociative adsorption of H 2 O on epitaxially strained, out-of-plane polarized, BaTiO 3 (001) thin films
Résumé
The strain dependence of the apparent activation energy of desorption of H 2 O on epitaxial, TiO 2-terminated, outof-plane polarized, BaTiO 3 (100) thin films has been investigated using X-ray diffraction, X-ray photoelectron spectroscopy and temperature-programmed desorption. The apparent activation energy of desorption increases significantly with the in-plane strain, suggesting that the strain-induced ferroelectric distortion determines the strength of the chemical bond between the dissociatively adsorbed water and the surface.
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